231201032113 has 4 divisors (see below), whose sum is σ = 232732164928. Its totient is φ = 229669899300.

The previous prime is 231201032093. The next prime is 231201032119. The reversal of 231201032113 is 311230102132.

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 231201032113 - 2⁵ = 231201032081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231201032119) 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, 765566181 + ... + 765566482.

It is an arithmetic number, because the mean of its divisors is an integer number (58183041232).

Almost surely, 2^231201032113 is an apocalyptic number.

It is an amenable number.

231201032113 is a deficient number, since it is larger than the sum of its proper divisors (1531132815).

231201032113 is a wasteful number, since it uses less digits than its factorization.

231201032113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531132814.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231201032113 its reverse (311230102132), we get a palindrome (542431134245).

The spelling of 231201032113 in words is "two hundred thirty-one billion, two hundred one million, thirty-two thousand, one hundred thirteen".