11312431113 has 8 divisors (see below), whose sum is σ = 15739034688. Its totient is φ = 7213724144.

The previous prime is 11312431103. The next prime is 11312431201. The reversal of 11312431113 is 31113421311.

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

It is a cyclic number.

It is not a de Polignac number, because 11312431113 - 2⁹ = 11312430601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11312431113.

It is not an unprimeable number, because it can be changed into a prime (11312431103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81974070 + ... + 81974207.

It is an arithmetic number, because the mean of its divisors is an integer number (1967379336).

Almost surely, 2^11312431113 is an apocalyptic number.

It is an amenable number.

11312431113 is a deficient number, since it is larger than the sum of its proper divisors (4426603575).

11312431113 is a wasteful number, since it uses less digits than its factorization.

11312431113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163948303.

The product of its digits is 216, while the sum is 21.

Adding to 11312431113 its reverse (31113421311), we get a palindrome (42425852424).

The spelling of 11312431113 in words is "eleven billion, three hundred twelve million, four hundred thirty-one thousand, one hundred thirteen".