11323210220031 has 16 divisors (see below), whose sum is σ = 15207133921280. Its totient is φ = 7494053126400.

The previous prime is 11323210220009. The next prime is 11323210220039. The reversal of 11323210220031 is 13002201232311.

It is not a de Polignac number, because 11323210220031 - 2⁷ = 11323210219903 is a prime.

It is a super-2 number, since 2×11323210220031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11323210220039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6287106 + ... + 7885056.

It is an arithmetic number, because the mean of its divisors is an integer number (950445870080).

Almost surely, 2^{11323210220031} is an apocalyptic number.

11323210220031 is a deficient number, since it is larger than the sum of its proper divisors (3883923701249).

11323210220031 is a wasteful number, since it uses less digits than its factorization.

11323210220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615086.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11323210220031 its reverse (13002201232311), we get a palindrome (24325411452342).

The spelling of 11323210220031 in words is "eleven trillion, three hundred twenty-three billion, two hundred ten million, two hundred twenty thousand, thirty-one".