231531430100201 has 64 divisors (see below), whose sum is σ = 291434501836800. Its totient is φ = 178689903624960.

The previous prime is 231531430100189. The next prime is 231531430100207. The reversal of 231531430100201 is 102001034135132.

It is a de Polignac number, because none of the positive numbers 2^k-231531430100201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231531430100207) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10390485206 + ... + 10390507488.

It is an arithmetic number, because the mean of its divisors is an integer number (4553664091200).

Almost surely, 2^{231531430100201} is an apocalyptic number.

It is an amenable number.

231531430100201 is a deficient number, since it is larger than the sum of its proper divisors (59903071736599).

231531430100201 is a wasteful number, since it uses less digits than its factorization.

231531430100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25334.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 231531430100201 its reverse (102001034135132), we get a palindrome (333532464235333).

The spelling of 231531430100201 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, four hundred thirty million, one hundred thousand, two hundred one".