113213233031 has 4 divisors (see below), whose sum is σ = 119872834992. Its totient is φ = 106553631072.

The previous prime is 113213233027. The next prime is 113213233037. The reversal of 113213233031 is 130332312311.

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 113213233031 - 2² = 113213233027 is a prime.

It is a super-2 number, since 2×113213233031² (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 = 113213232988 and 113213233006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113213233037) 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, 3329800955 + ... + 3329800988.

It is an arithmetic number, because the mean of its divisors is an integer number (29968208748).

Almost surely, 2^113213233031 is an apocalyptic number.

113213233031 is a deficient number, since it is larger than the sum of its proper divisors (6659601961).

113213233031 is an equidigital number, since it uses as much as digits as its factorization.

113213233031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6659601960.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 113213233031 its reverse (130332312311), we get a palindrome (243545545342).

The spelling of 113213233031 in words is "one hundred thirteen billion, two hundred thirteen million, two hundred thirty-three thousand, thirty-one".