231313113001 has 4 divisors (see below), whose sum is σ = 231317235652. Its totient is φ = 231308990352.

The previous prime is 231313112977. The next prime is 231313113007. The reversal of 231313113001 is 100311313132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21275139600 + 210037973401 = 145860^2 + 458299^2 .

It is a cyclic number.

It is not a de Polignac number, because 231313113001 - 2¹⁹ = 231312588713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231313113001.

It is not an unprimeable number, because it can be changed into a prime (231313113007) 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, 1975986 + ... + 2089771.

It is an arithmetic number, because the mean of its divisors is an integer number (57829308913).

Almost surely, 2^231313113001 is an apocalyptic number.

It is an amenable number.

231313113001 is a deficient number, since it is larger than the sum of its proper divisors (4122651).

231313113001 is an equidigital number, since it uses as much as digits as its factorization.

231313113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122650.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 231313113001 its reverse (100311313132), we get a palindrome (331624426133).

The spelling of 231313113001 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred thirteen thousand, one".