20001331032 has 64 divisors (see below), whose sum is σ = 50174467200. Its totient is φ = 6644340480.

The previous prime is 20001330991. The next prime is 20001331039. The reversal of 20001331032 is 23013310002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001331039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12730807 + ... + 12732377.

It is an arithmetic number, because the mean of its divisors is an integer number (783976050).

Almost surely, 2^20001331032 is an apocalyptic number.

It is an amenable number.

20001331032 is an abundant number, since it is smaller than the sum of its proper divisors (30173136168).

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

20001331032 is a wasteful number, since it uses less digits than its factorization.

20001331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3056 (or 3052 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20001331032 its reverse (23013310002), we get a palindrome (43014641034).

The spelling of 20001331032 in words is "twenty billion, one million, three hundred thirty-one thousand, thirty-two".