113142202031 has 4 divisors (see below), whose sum is σ = 113550657912. Its totient is φ = 112733746152.

The previous prime is 113142201947. The next prime is 113142202073. The reversal of 113142202031 is 130202241311.

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 113142202031 - 2³⁴ = 95962332847 is a prime.

It is a super-2 number, since 2×113142202031² (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 = 113142201994 and 113142202012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113142252031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204227525 + ... + 204228078.

It is an arithmetic number, because the mean of its divisors is an integer number (28387664478).

Almost surely, 2^113142202031 is an apocalyptic number.

113142202031 is a deficient number, since it is larger than the sum of its proper divisors (408455881).

113142202031 is an equidigital number, since it uses as much as digits as its factorization.

113142202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408455880.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 113142202031 its reverse (130202241311), we get a palindrome (243344443342).

The spelling of 113142202031 in words is "one hundred thirteen billion, one hundred forty-two million, two hundred two thousand, thirty-one".