113233321431 has 12 divisors (see below), whose sum is σ = 163569949920. Its totient is φ = 75483938880.

The previous prime is 113233321403. The next prime is 113233321433. The reversal of 113233321431 is 134123332311.

113233321431 is a `hidden beast` number, since 1 + 1 + 323 + 332 + 1 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 113233321431 - 2⁹ = 113233320919 is a prime.

It is a super-2 number, since 2×113233321431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113233321395 and 113233321404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113233321433) 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, 263935 + ... + 544176.

It is an arithmetic number, because the mean of its divisors is an integer number (13630829160).

Almost surely, 2^113233321431 is an apocalyptic number.

113233321431 is a deficient number, since it is larger than the sum of its proper divisors (50336628489).

113233321431 is a wasteful number, since it uses less digits than its factorization.

113233321431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823686 (or 823683 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 113233321431 its reverse (134123332311), we get a palindrome (247356653742).

The spelling of 113233321431 in words is "one hundred thirteen billion, two hundred thirty-three million, three hundred twenty-one thousand, four hundred thirty-one".