113203131233 has 12 divisors (see below), whose sum is σ = 119424740820. Its totient is φ = 107287795296.

The previous prime is 113203131193. The next prime is 113203131259. The reversal of 113203131233 is 332131302311.

It can be written as a sum of positive squares in 2 ways, for example, as 60893952289 + 52309178944 = 246767^2 + 228712^2 .

It is not a de Polignac number, because 113203131233 - 2⁶ = 113203131169 is a prime.

It is a super-3 number, since 3×113203131233³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113203131199 and 113203131208.

It is not an unprimeable number, because it can be changed into a prime (113203131263) 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, 923966 + ... + 1039287.

It is an arithmetic number, because the mean of its divisors is an integer number (9952061735).

Almost surely, 2^113203131233 is an apocalyptic number.

It is an amenable number.

113203131233 is a deficient number, since it is larger than the sum of its proper divisors (6221609587).

113203131233 is a wasteful number, since it uses less digits than its factorization.

113203131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963408 (or 1963385 counting only the distinct ones).

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

Adding to 113203131233 its reverse (332131302311), we get a palindrome (445334433544).

The spelling of 113203131233 in words is "one hundred thirteen billion, two hundred three million, one hundred thirty-one thousand, two hundred thirty-three".