12103432112100 has 144 divisors (see below), whose sum is σ = 40152382527488. Its totient is φ = 2757487224960.

The previous prime is 12103432112063. The next prime is 12103432112113. The reversal of 12103432112100 is 121123430121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8742172 + ... + 10031571.

Almost surely, 2^{12103432112100} is an apocalyptic number.

12103432112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103432112100 is an abundant number, since it is smaller than the sum of its proper divisors (28048950415388).

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

12103432112100 is a wasteful number, since it uses less digits than its factorization.

12103432112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18774074 (or 18774067 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12103432112100 its reverse (121123430121), we get a palindrome (12224555542221).

The spelling of 12103432112100 in words is "twelve trillion, one hundred three billion, four hundred thirty-two million, one hundred twelve thousand, one hundred".