20010021232 has 20 divisors (see below), whose sum is σ = 39260170720. Its totient is φ = 9878364288.

The previous prime is 20010021217. The next prime is 20010021281. The reversal of 20010021232 is 23212001002.

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, 7914093 + ... + 7916620.

It is an arithmetic number, because the mean of its divisors is an integer number (1963008536).

Almost surely, 2^20010021232 is an apocalyptic number.

It is an amenable number.

20010021232 is a deficient number, since it is larger than the sum of its proper divisors (19250149488).

20010021232 is a wasteful number, since it uses less digits than its factorization.

20010021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15830800 (or 15830794 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20010021232 its reverse (23212001002), we get a palindrome (43222022234).

The spelling of 20010021232 in words is "twenty billion, ten million, twenty-one thousand, two hundred thirty-two".