231312201 has 16 divisors (see below), whose sum is σ = 317858688. Its totient is φ = 149532800.

The previous prime is 231312187. The next prime is 231312203. The reversal of 231312201 is 102213132.

231312201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231312201 - 2¹⁷ = 231181129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231312203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14911 + ... + 26171.

It is an arithmetic number, because the mean of its divisors is an integer number (19866168).

Almost surely, 2^231312201 is an apocalyptic number.

It is an amenable number.

231312201 is a deficient number, since it is larger than the sum of its proper divisors (86546487).

231312201 is a wasteful number, since it uses less digits than its factorization.

231312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11472.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 231312201 is about 15208.9513445208. The cubic root of 231312201 is about 613.8555409637.

Adding to 231312201 its reverse (102213132), we get a palindrome (333525333).

The spelling of 231312201 in words is "two hundred thirty-one million, three hundred twelve thousand, two hundred one".