20123013232100 has 36 divisors (see below), whose sum is σ = 45075549646848. Its totient is φ = 7789553508000.

The previous prime is 20123013232079. The next prime is 20123013232139. The reversal of 20123013232100 is 123231032102.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 11 ways as a sum of consecutive naturals, for example, 3245644196 + ... + 3245650395.

Almost surely, 2^{20123013232100} is an apocalyptic number.

20123013232100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123013232100 is an abundant number, since it is smaller than the sum of its proper divisors (24952536414748).

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

20123013232100 is a wasteful number, since it uses less digits than its factorization.

20123013232100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6491294636 (or 6491294629 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20123013232100 its reverse (123231032102), we get a palindrome (20246244264202).

The spelling of 20123013232100 in words is "twenty trillion, one hundred twenty-three billion, thirteen million, two hundred thirty-two thousand, one hundred".