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12113401020 = 2235740137187
BaseRepresentation
bin10110100100000001…
…11101010010111100
31011021012111112022020
423102000331102330
5144302012313040
65322000120140
7606116131650
oct132200752274
934235445266
1012113401020
115156776526
122420906050
1311b07bac16
1482cadaa60
154ad6c0cd0
hex2d203d4bc

12113401020 has 96 divisors (see below), whose sum is σ = 38777937408. Its totient is φ = 2767702272.

The previous prime is 12113401009. The next prime is 12113401021. The reversal of 12113401020 is 2010431121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113401021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1681867 + ... + 1689053.

It is an arithmetic number, because the mean of its divisors is an integer number (403936848).

Almost surely, 212113401020 is an apocalyptic number.

12113401020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12113401020 is an abundant number, since it is smaller than the sum of its proper divisors (26664536388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12113401020 is a wasteful number, since it uses less digits than its factorization.

12113401020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11219 (or 11217 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12113401020 its reverse (2010431121), we get a palindrome (14123832141).

The spelling of 12113401020 in words is "twelve billion, one hundred thirteen million, four hundred one thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 4013 7187 8026 12039 14374 16052 20065 21561 24078 28091 28748 35935 40130 43122 48156 50309 56182 60195 71870 80260 84273 86244 100618 107805 112364 120390 140455 143740 150927 168546 201236 215610 240780 251545 280910 301854 337092 421365 431220 503090 561820 603708 754635 842730 1006180 1509270 1685460 3018540 28841431 57682862 86524293 115365724 144207155 173048586 201890017 288414310 346097172 403780034 432621465 576828620 605670051 807560068 865242930 1009450085 1211340102 1730485860 2018900170 2422680204 3028350255 4037800340 6056700510 12113401020