123203330512100 has 36 divisors (see below), whose sum is σ = 269302696052964. Its totient is φ = 48921614446080.

The previous prime is 123203330512099. The next prime is 123203330512133. The reversal of 123203330512100 is 1215033302321.

It can be written as a sum of positive squares in 6 ways, for example, as 575037089344 + 122628293422756 = 758312^2 + 11073766^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123203330512100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4496458217 + ... + 4496485616.

Almost surely, 2^{123203330512100} is an apocalyptic number.

123203330512100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123203330512100 is an abundant number, since it is smaller than the sum of its proper divisors (146099365540864).

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

123203330512100 is a wasteful number, since it uses less digits than its factorization.

123203330512100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8992943984 (or 8992943977 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 123203330512100 its reverse (1215033302321), we get a palindrome (124418363814421).

The spelling of 123203330512100 in words is "one hundred twenty-three trillion, two hundred three billion, three hundred thirty million, five hundred twelve thousand, one hundred".