20001131332 has 24 divisors (see below), whose sum is σ = 43079360576. Its totient is φ = 7912535328.

The previous prime is 20001131291. The next prime is 20001131341. The reversal of 20001131332 is 23313110002.

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, 27473718 + ... + 27474445.

Almost surely, 2^20001131332 is an apocalyptic number.

It is an amenable number.

20001131332 is an abundant number, since it is smaller than the sum of its proper divisors (23078229244).

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

20001131332 is a wasteful number, since it uses less digits than its factorization.

20001131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54948187 (or 54948185 counting only the distinct ones).

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

Adding to 20001131332 its reverse (23313110002), we get a palindrome (43314241334).

The spelling of 20001131332 in words is "twenty billion, one million, one hundred thirty-one thousand, three hundred thirty-two".