113001223731 has 12 divisors (see below), whose sum is σ = 165610609416. Its totient is φ = 68485589920.

The previous prime is 113001223703. The next prime is 113001223747. The reversal of 113001223731 is 137322100311.

It is not a de Polignac number, because 113001223731 - 2⁷ = 113001223603 is a prime.

It is a super-2 number, since 2×113001223731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113001223771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155648706 + ... + 155649431.

It is an arithmetic number, because the mean of its divisors is an integer number (13800884118).

Almost surely, 2^113001223731 is an apocalyptic number.

113001223731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113001223731 is a deficient number, since it is larger than the sum of its proper divisors (52609385685).

113001223731 is a wasteful number, since it uses less digits than its factorization.

113001223731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311298162 (or 311298151 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The spelling of 113001223731 in words is "one hundred thirteen billion, one million, two hundred twenty-three thousand, seven hundred thirty-one".