113122531 has 8 divisors (see below), whose sum is σ = 114476544. Its totient is φ = 111773640.

The previous prime is 113122519. The next prime is 113122543. The reversal of 113122531 is 135221311.

It is an interprime number because it is at equal distance from previous prime (113122519) and next prime (113122543).

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 113122531 - 2⁹ = 113122019 is a prime.

It is a super-2 number, since 2×113122531² = 25593414039691922, 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 = 113122499 and 113122508.

It is not an unprimeable number, because it can be changed into a prime (113122931) 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, 59526 + ... + 61396.

It is an arithmetic number, because the mean of its divisors is an integer number (14309568).

Almost surely, 2^113122531 is an apocalyptic number.

113122531 is a deficient number, since it is larger than the sum of its proper divisors (1354013).

113122531 is a wasteful number, since it uses less digits than its factorization.

113122531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its digits is 180, while the sum is 19.

The square root of 113122531 is about 10635.9076246459. The cubic root of 113122531 is about 483.6334949912.

Adding to 113122531 its reverse (135221311), we get a palindrome (248343842).

The spelling of 113122531 in words is "one hundred thirteen million, one hundred twenty-two thousand, five hundred thirty-one".