113001222031 has 4 divisors (see below), whose sum is σ = 114037930600. Its totient is φ = 111964513464.

The previous prime is 113001222023. The next prime is 113001222043. The reversal of 113001222031 is 130222100311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113001222031 - 2³ = 113001222023 is a prime.

It is a super-2 number, since 2×113001222031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113001221996 and 113001222014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113001222331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518354121 + ... + 518354338.

It is an arithmetic number, because the mean of its divisors is an integer number (28509482650).

Almost surely, 2^113001222031 is an apocalyptic number.

113001222031 is a deficient number, since it is larger than the sum of its proper divisors (1036708569).

113001222031 is a wasteful number, since it uses less digits than its factorization.

113001222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036708568.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 113001222031 its reverse (130222100311), we get a palindrome (243223322342).

The spelling of 113001222031 in words is "one hundred thirteen billion, one million, two hundred twenty-two thousand, thirty-one".