11312312331 has 8 divisors (see below), whose sum is σ = 15569634304. Its totient is φ = 7298265960.

The previous prime is 11312312317. The next prime is 11312312339. The reversal of 11312312331 is 13321321311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11312312331 - 2⁶ = 11312312267 is a prime.

It is a super-2 number, since 2×11312312331² (a number of 21 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 = 11312312298 and 11312312307.

It is not an unprimeable number, because it can be changed into a prime (11312312339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60818791 + ... + 60818976.

It is an arithmetic number, because the mean of its divisors is an integer number (1946204288).

Almost surely, 2^11312312331 is an apocalyptic number.

11312312331 is a deficient number, since it is larger than the sum of its proper divisors (4257321973).

11312312331 is a wasteful number, since it uses less digits than its factorization.

11312312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121637801.

The product of its digits is 324, while the sum is 21.

Adding to 11312312331 its reverse (13321321311), we get a palindrome (24633633642).

The spelling of 11312312331 in words is "eleven billion, three hundred twelve million, three hundred twelve thousand, three hundred thirty-one".