20031201232 has 40 divisors (see below), whose sum is σ = 44369928000. Its totient is φ = 8581873152.

The previous prime is 20031201199. The next prime is 20031201257. The reversal of 20031201232 is 23210213002.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317019 + ... + 374917.

It is an arithmetic number, because the mean of its divisors is an integer number (1109248200).

Almost surely, 2^20031201232 is an apocalyptic number.

It is an amenable number.

20031201232 is an abundant number, since it is smaller than the sum of its proper divisors (24338726768).

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

20031201232 is a wasteful number, since it uses less digits than its factorization.

20031201232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61003 (or 60997 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20031201232 its reverse (23210213002), we get a palindrome (43241414234).

The spelling of 20031201232 in words is "twenty billion, thirty-one million, two hundred one thousand, two hundred thirty-two".