113311031 has 8 divisors (see below), whose sum is σ = 115896000. Its totient is φ = 110733408.

The previous prime is 113311027. The next prime is 113311039. The reversal of 113311031 is 130113311.

It is a happy number.

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 113311031 - 2² = 113311027 is a prime.

It is a super-2 number, since 2×113311031² = 25678779492565922, 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 = 113310997 and 113311015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113311039) 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, 39845 + ... + 42593.

It is an arithmetic number, because the mean of its divisors is an integer number (14487000).

Almost surely, 2^113311031 is an apocalyptic number.

113311031 is a deficient number, since it is larger than the sum of its proper divisors (2584969).

113311031 is an equidigital number, since it uses as much as digits as its factorization.

113311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 113311031 is about 10644.7654271947. The cubic root of 113311031 is about 483.9019776791.

Adding to 113311031 its reverse (130113311), we get a palindrome (243424342).

The spelling of 113311031 in words is "one hundred thirteen million, three hundred eleven thousand, thirty-one".