11713831 has 4 divisors (see below), whose sum is σ = 12223152. Its totient is φ = 11204512.

The previous prime is 11713829. The next prime is 11713841. The reversal of 11713831 is 13831711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13831711 = 269 ⋅51419.

It is a cyclic number.

It is not a de Polignac number, because 11713831 - 2¹ = 11713829 is a prime.

It is a super-2 number, since 2×11713831² = 274427673393122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11713796 and 11713805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11713841) 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, 254626 + ... + 254671.

It is an arithmetic number, because the mean of its divisors is an integer number (3055788).

Almost surely, 2^11713831 is an apocalyptic number.

11713831 is a deficient number, since it is larger than the sum of its proper divisors (509321).

11713831 is an equidigital number, since it uses as much as digits as its factorization.

11713831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509320.

The product of its digits is 504, while the sum is 25.

The square root of 11713831 is about 3422.5474430605. The cubic root of 11713831 is about 227.1082886209.

It can be divided in two parts, 11713 and 831, that added together give a square (12544 = 112²).

The spelling of 11713831 in words is "eleven million, seven hundred thirteen thousand, eight hundred thirty-one".