103121434120 has 32 divisors (see below), whose sum is σ = 233794408320. Its totient is φ = 40933696960.

The previous prime is 103121434057. The next prime is 103121434133. The reversal of 103121434120 is 21434121301.

It is a junction number, because it is equal to n+sod(n) for n = 103121434091 and 103121434100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9834592 + ... + 9845071.

It is an arithmetic number, because the mean of its divisors is an integer number (7306075260).

Almost surely, 2^103121434120 is an apocalyptic number.

103121434120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103121434120 is an abundant number, since it is smaller than the sum of its proper divisors (130672974200).

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

103121434120 is a wasteful number, since it uses less digits than its factorization.

103121434120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19679805 (or 19679801 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 103121434120 its reverse (21434121301), we get a palindrome (124555555421).

The spelling of 103121434120 in words is "one hundred three billion, one hundred twenty-one million, four hundred thirty-four thousand, one hundred twenty".