31233232113 has 4 divisors (see below), whose sum is σ = 41644309488. Its totient is φ = 20822154740.

The previous prime is 31233232111. The next prime is 31233232117. The reversal of 31233232113 is 31123233213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31233232113 - 2¹ = 31233232111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31233232111) 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, 5205538683 + ... + 5205538688.

It is an arithmetic number, because the mean of its divisors is an integer number (10411077372).

Almost surely, 2^31233232113 is an apocalyptic number.

It is an amenable number.

31233232113 is a deficient number, since it is larger than the sum of its proper divisors (10411077375).

31233232113 is a wasteful number, since it uses less digits than its factorization.

31233232113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10411077374.

The product of its digits is 1944, while the sum is 24.

Adding to 31233232113 its reverse (31123233213), we get a palindrome (62356465326).

The spelling of 31233232113 in words is "thirty-one billion, two hundred thirty-three million, two hundred thirty-two thousand, one hundred thirteen".