20131232323100 has 18 divisors (see below), whose sum is σ = 43684774141344. Its totient is φ = 8052492929200.

The previous prime is 20131232323073. The next prime is 20131232323129. The reversal of 20131232323100 is 132323213102.

It is a super-2 number, since 2×20131232323100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100656161516 + ... + 100656161715.

Almost surely, 2^{20131232323100} is an apocalyptic number.

20131232323100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20131232323100 is an abundant number, since it is smaller than the sum of its proper divisors (23553541818244).

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

20131232323100 is a wasteful number, since it uses less digits than its factorization.

20131232323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201312323245 (or 201312323238 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20131232323100 its reverse (132323213102), we get a palindrome (20263555536202).

The spelling of 20131232323100 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty-two million, three hundred twenty-three thousand, one hundred".