20021300232 has 32 divisors (see below), whose sum is σ = 50101766880. Its totient is φ = 6667297920.

The previous prime is 20021300147. The next prime is 20021300239. The reversal of 20021300232 is 23200312002.

It is not an unprimeable number, because it can be changed into a prime (20021300239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378994 + ... + 428577.

It is an arithmetic number, because the mean of its divisors is an integer number (1565680215).

Almost surely, 2^20021300232 is an apocalyptic number.

It is an amenable number.

20021300232 is an abundant number, since it is smaller than the sum of its proper divisors (30080466648).

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

20021300232 is a wasteful number, since it uses less digits than its factorization.

20021300232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808613 (or 808609 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20021300232 its reverse (23200312002), we get a palindrome (43221612234).

The spelling of 20021300232 in words is "twenty billion, twenty-one million, three hundred thousand, two hundred thirty-two".