11313313831 has 8 divisors (see below), whose sum is σ = 11372054400. Its totient is φ = 11254725240.

The previous prime is 11313313819. The next prime is 11313313873. The reversal of 11313313831 is 13831331311.

11313313831 is a nontrivial binomial coefficient, being equal to C(150422, 2).

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 11313313831 - 2¹⁷ = 11313182759 is a prime.

It is a super-2 number, since 2×11313313831² (a number of 21 digits) contains 22 as substring.

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 11313313831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313313931) 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, 112816 + ... + 188026.

It is an arithmetic number, because the mean of its divisors is an integer number (1421506800).

Almost surely, 2^11313313831 is an apocalyptic number.

11313313831 is the 150421-st triangular number and also the 75211-st hexagonal number.

11313313831 is the 50141-st centered nonagonal number.

11313313831 is a deficient number, since it is larger than the sum of its proper divisors (58740569).

11313313831 is an equidigital number, since it uses as much as digits as its factorization.

11313313831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75989.

The product of its digits is 1944, while the sum is 28.

The spelling of 11313313831 in words is "eleven billion, three hundred thirteen million, three hundred thirteen thousand, eight hundred thirty-one".