20302230021031 has 48 divisors (see below), whose sum is σ = 24375328790400. Its totient is φ = 16851018498048.

The previous prime is 20302230021023. The next prime is 20302230021037. The reversal of 20302230021031 is 13012003220302.

It is not a de Polignac number, because 20302230021031 - 2³ = 20302230021023 is a prime.

It is a super-2 number, since 2×20302230021031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302230021037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 868755915 + ... + 868779283.

It is an arithmetic number, because the mean of its divisors is an integer number (507819349800).

Almost surely, 2^{20302230021031} is an apocalyptic number.

20302230021031 is a deficient number, since it is larger than the sum of its proper divisors (4073098769369).

20302230021031 is a wasteful number, since it uses less digits than its factorization.

20302230021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27416 (or 27409 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20302230021031 its reverse (13012003220302), we get a palindrome (33314233241333).

The spelling of 20302230021031 in words is "twenty trillion, three hundred two billion, two hundred thirty million, twenty-one thousand, thirty-one".