23131199701 has 2 divisors, whose sum is σ = 23131199702. Its totient is φ = 23131199700.

The previous prime is 23131199687. The next prime is 23131199717. The reversal of 23131199701 is 10799113132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22320658801 + 810540900 = 149401^2 + 28470^2 .

It is a cyclic number.

It is not a de Polignac number, because 23131199701 - 2¹³ = 23131191509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23131199731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565599850 + 11565599851.

It is an arithmetic number, because the mean of its divisors is an integer number (11565599851).

Almost surely, 2^23131199701 is an apocalyptic number.

It is an amenable number.

23131199701 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131199701 is an equidigital number, since it uses as much as digits as its factorization.

23131199701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The spelling of 23131199701 in words is "twenty-three billion, one hundred thirty-one million, one hundred ninety-nine thousand, seven hundred one".