20312201020 has 12 divisors (see below), whose sum is σ = 42655622184. Its totient is φ = 8124880400.

The previous prime is 20312201011. The next prime is 20312201033. The reversal of 20312201020 is 2010221302.

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, 507805006 + ... + 507805045.

It is an arithmetic number, because the mean of its divisors is an integer number (3554635182).

Almost surely, 2^20312201020 is an apocalyptic number.

20312201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312201020 is an abundant number, since it is smaller than the sum of its proper divisors (22343421164).

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

20312201020 is a wasteful number, since it uses less digits than its factorization.

20312201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015610060 (or 1015610058 counting only the distinct ones).

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

Adding to 20312201020 its reverse (2010221302), we get a palindrome (22322422322).

The spelling of 20312201020 in words is "twenty billion, three hundred twelve million, two hundred one thousand, twenty".