12123100032 has 64 divisors (see below), whose sum is σ = 32220147600. Its totient is φ = 4038754304.

The previous prime is 12123100021. The next prime is 12123100039. The reversal of 12123100032 is 23000132121.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 12123099984 and 12123100020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123100039) 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, 758944 + ... + 774752.

Almost surely, 2^12123100032 is an apocalyptic number.

12123100032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12123100032 is an abundant number, since it is smaller than the sum of its proper divisors (20097047568).

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

12123100032 is a wasteful number, since it uses less digits than its factorization.

12123100032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17823 (or 17811 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12123100032 its reverse (23000132121), we get a palindrome (35123232153).

The spelling of 12123100032 in words is "twelve billion, one hundred twenty-three million, one hundred thousand, thirty-two".