11231220322320 has 160 divisors (see below), whose sum is σ = 37489657472640. Its totient is φ = 2771039477760.

The previous prime is 11231220322313. The next prime is 11231220322391. The reversal of 11231220322320 is 2322302213211.

It is a super-2 number, since 2×11231220322320² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23087671 + ... + 23569110.

It is an arithmetic number, because the mean of its divisors is an integer number (234310359204).

Almost surely, 2^{11231220322320} is an apocalyptic number.

11231220322320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231220322320 is an abundant number, since it is smaller than the sum of its proper divisors (26258437150320).

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

11231220322320 is a wasteful number, since it uses less digits than its factorization.

11231220322320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46656873 (or 46656867 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11231220322320 its reverse (2322302213211), we get a palindrome (13553522535531).

The spelling of 11231220322320 in words is "eleven trillion, two hundred thirty-one billion, two hundred twenty million, three hundred twenty-two thousand, three hundred twenty".