20302213122331 has 32 divisors (see below), whose sum is σ = 23986372608000. Its totient is φ = 16823235733920.

The previous prime is 20302213122299. The next prime is 20302213122361. The reversal of 20302213122331 is 13322131220302.

It is not a de Polignac number, because 20302213122331 - 2⁵ = 20302213122299 is a prime.

It is a super-2 number, since 2×20302213122331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20302213122296 and 20302213122305.

It is not an unprimeable number, because it can be changed into a prime (20302213122361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10553430 + ... + 12327988.

It is an arithmetic number, because the mean of its divisors is an integer number (749574144000).

Almost surely, 2^{20302213122331} is an apocalyptic number.

20302213122331 is a deficient number, since it is larger than the sum of its proper divisors (3684159485669).

20302213122331 is a wasteful number, since it uses less digits than its factorization.

20302213122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774999.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20302213122331 its reverse (13322131220302), we get a palindrome (33624344342633).

The spelling of 20302213122331 in words is "twenty trillion, three hundred two billion, two hundred thirteen million, one hundred twenty-two thousand, three hundred thirty-one".