231313100401 has 4 divisors (see below), whose sum is σ = 231314588532. Its totient is φ = 231311612272.

The previous prime is 231313100377. The next prime is 231313100453. The reversal of 231313100401 is 104001313132.

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 111182233600 + 120130866801 = 333440^2 + 346599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231313100401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231313104401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479566 + ... + 832231.

It is an arithmetic number, because the mean of its divisors is an integer number (57828647133).

Almost surely, 2^231313100401 is an apocalyptic number.

It is an amenable number.

231313100401 is a deficient number, since it is larger than the sum of its proper divisors (1488131).

231313100401 is a wasteful number, since it uses less digits than its factorization.

231313100401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488130.

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

Adding to 231313100401 its reverse (104001313132), we get a palindrome (335314413533).

The spelling of 231313100401 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred thousand, four hundred one".