11312431020049 has 4 divisors (see below), whose sum is σ = 11677348149760. Its totient is φ = 10947513890340.

The previous prime is 11312431020031. The next prime is 11312431020053. The reversal of 11312431020049 is 94002013421311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11312431020049 - 2²⁵ = 11312397465617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 364917129679 = 11312431020049 / (1 + 1 + 3 + 1 + 2 + 4 + 3 + 1 + 0 + 2 + 0 + 0 + 4 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11312431020049.

It is not an unprimeable number, because it can be changed into a prime (11312431020029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182458564809 + ... + 182458564870.

It is an arithmetic number, because the mean of its divisors is an integer number (2919337037440).

Almost surely, 2^{11312431020049} is an apocalyptic number.

It is an amenable number.

11312431020049 is a deficient number, since it is larger than the sum of its proper divisors (364917129711).

11312431020049 is an equidigital number, since it uses as much as digits as its factorization.

11312431020049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364917129710.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 11312431020049 in words is "eleven trillion, three hundred twelve billion, four hundred thirty-one million, twenty thousand, forty-nine".