111313031 has 8 divisors (see below), whose sum is σ = 116446560. Its totient is φ = 106204032.

The previous prime is 111313003. The next prime is 111313051. The reversal of 111313031 is 130313111.

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 111313031 - 2²² = 107118727 is a prime.

It is a super-2 number, since 2×111313031² = 24781181740813922, 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 = 111312997 and 111313015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111313051) 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, 3491 + ... + 15323.

It is an arithmetic number, because the mean of its divisors is an integer number (14555820).

Almost surely, 2^111313031 is an apocalyptic number.

111313031 is a deficient number, since it is larger than the sum of its proper divisors (5133529).

111313031 is a wasteful number, since it uses less digits than its factorization.

111313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12265.

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

The square root of 111313031 is about 10550.4990877209. The cubic root of 111313031 is about 481.0408994114.

Adding to 111313031 its reverse (130313111), we get a palindrome (241626142).

The spelling of 111313031 in words is "one hundred eleven million, three hundred thirteen thousand, thirty-one".