23231131031237 has 2 divisors, whose sum is σ = 23231131031238. Its totient is φ = 23231131031236.

The previous prime is 23231131031209. The next prime is 23231131031263. The reversal of 23231131031237 is 73213013113232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11752376974276 + 11478754056961 = 3428174^2 + 3388031^2 .

It is a cyclic number.

It is not a de Polignac number, because 23231131031237 - 2²⁸ = 23230862595781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23231131031267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615565515618 + 11615565515619.

It is an arithmetic number, because the mean of its divisors is an integer number (11615565515619).

Almost surely, 2^{23231131031237} is an apocalyptic number.

It is an amenable number.

23231131031237 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231131031237 is an equidigital number, since it uses as much as digits as its factorization.

23231131031237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

Adding to 23231131031237 its reverse (73213013113232), we get a palindrome (96444144144469).

The spelling of 23231131031237 in words is "twenty-three trillion, two hundred thirty-one billion, one hundred thirty-one million, thirty-one thousand, two hundred thirty-seven".