20131001332 has 12 divisors (see below), whose sum is σ = 37939194916. Its totient is φ = 9291231360.

The previous prime is 20131001287. The next prime is 20131001347. The reversal of 20131001332 is 23310013102.

It can be written as a sum of positive squares in 2 ways, for example, as 4688962576 + 15442038756 = 68476^2 + 124266^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193567269 + ... + 193567372.

Almost surely, 2^20131001332 is an apocalyptic number.

It is an amenable number.

20131001332 is a deficient number, since it is larger than the sum of its proper divisors (17808193584).

20131001332 is a wasteful number, since it uses less digits than its factorization.

20131001332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387134658 (or 387134656 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20131001332 its reverse (23310013102), we get a palindrome (43441014434).

The spelling of 20131001332 in words is "twenty billion, one hundred thirty-one million, one thousand, three hundred thirty-two".