11320115331 has 32 divisors (see below), whose sum is σ = 17772180480. Its totient is φ = 6273818496.

The previous prime is 11320115309. The next prime is 11320115351. The reversal of 11320115331 is 13351102311.

It is not a de Polignac number, because 11320115331 - 2¹¹ = 11320113283 is a prime.

It is a super-2 number, since 2×11320115331² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 11320115298 and 11320115307.

It is not an unprimeable number, because it can be changed into a prime (11320115351) 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, 223330 + ... + 269288.

It is an arithmetic number, because the mean of its divisors is an integer number (555380640).

Almost surely, 2^11320115331 is an apocalyptic number.

11320115331 is a deficient number, since it is larger than the sum of its proper divisors (6452065149).

11320115331 is a wasteful number, since it uses less digits than its factorization.

11320115331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46323.

The product of its (nonzero) digits is 270, while the sum is 21.

Adding to 11320115331 its reverse (13351102311), we get a palindrome (24671217642).

The spelling of 11320115331 in words is "eleven billion, three hundred twenty million, one hundred fifteen thousand, three hundred thirty-one".