231312310001 has 2 divisors, whose sum is σ = 231312310002. Its totient is φ = 231312310000.

The previous prime is 231312309997. The next prime is 231312310003. The reversal of 231312310001 is 100013213132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227161858225 + 4150451776 = 476615^2 + 64424^2 .

It is a cyclic number.

It is not a de Polignac number, because 231312310001 - 2² = 231312309997 is a prime.

Together with 231312310003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231312310003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115656155000 + 115656155001.

It is an arithmetic number, because the mean of its divisors is an integer number (115656155001).

Almost surely, 2^231312310001 is an apocalyptic number.

It is an amenable number.

231312310001 is a deficient number, since it is larger than the sum of its proper divisors (1).

231312310001 is an equidigital number, since it uses as much as digits as its factorization.

231312310001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 231312310001 its reverse (100013213132), we get a palindrome (331325523133).

The spelling of 231312310001 in words is "two hundred thirty-one billion, three hundred twelve million, three hundred ten thousand, one".