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12313013321020 = 225976346914083
BaseRepresentation
bin1011001100101101100011…
…0010001111110100111100
31121121010001001212100000011
42303023120302033310330
53103214022402233040
642104304211513004
72410404643233316
oct263133062176474
947533031770004
1012313013321020
113a17a13024865
12146a4172b8764
136b415c5a5539
14307d4b1567b6
15165452cb33ea
hexb32d8c8fd3c

12313013321020 has 24 divisors (see below), whose sum is σ = 26123898369744. Its totient is φ = 4874430014976.

The previous prime is 12313013320991. The next prime is 12313013321027. The reversal of 12313013321020 is 2012331031321.

It is a super-2 number, since 2×123130133210202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12313013320982 and 12313013321000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313013321027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3173455102 + ... + 3173458981.

It is an arithmetic number, because the mean of its divisors is an integer number (1088495765406).

Almost surely, 212313013321020 is an apocalyptic number.

12313013321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12313013321020 is an abundant number, since it is smaller than the sum of its proper divisors (13810885048724).

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

12313013321020 is a wasteful number, since it uses less digits than its factorization.

12313013321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6346914189 (or 6346914187 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12313013321020 its reverse (2012331031321), we get a palindrome (14325344352341).

The spelling of 12313013321020 in words is "twelve trillion, three hundred thirteen billion, thirteen million, three hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 6346914083 12693828166 25387656332 31734570415 63469140830 126938281660 615650666051 1231301332102 2462602664204 3078253330255 6156506660510 12313013321020