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111102122020 = 22531712523901
BaseRepresentation
bin110011101111000110…
…0111101100000100100
3101121202220020120120011
41213132030331200210
53310014120401040
6123012320020004
711012133312121
oct1473614754044
9347686216504
10111102122020
114313328475a
1219647a61604
13a627941706
14553d715748
152d53c4c3ea
hex19de33d824

111102122020 has 48 divisors (see below), whose sum is σ = 244232948736. Its totient is φ = 42401520000.

The previous prime is 111102122011. The next prime is 111102122057. The reversal of 111102122020 is 20221201111.

Adding to 111102122020 its reverse (20221201111), we get a palindrome (131323323131).

111102122020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1217931 + ... + 1305970.

It is an arithmetic number, because the mean of its divisors is an integer number (5088186432).

Almost surely, 2111102122020 is an apocalyptic number.

111102122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111102122020 is an abundant number, since it is smaller than the sum of its proper divisors (133130826716).

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

111102122020 is a wasteful number, since it uses less digits than its factorization.

111102122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524012 (or 2524010 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The spelling of 111102122020 in words is "one hundred eleven billion, one hundred two million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 71 124 142 155 284 310 355 620 710 1420 2201 4402 8804 11005 22010 44020 2523901 5047802 10095604 12619505 25239010 50478020 78240931 156481862 179196971 312963724 358393942 391204655 716787884 782409310 895984855 1564818620 1791969710 3583939420 5555106101 11110212202 22220424404 27775530505 55551061010 111102122020