23354172217631 has 2 divisors, whose sum is σ = 23354172217632. Its totient is φ = 23354172217630.

The previous prime is 23354172217613. The next prime is 23354172217777. The reversal of 23354172217631 is 13671227145332.

Together with previous prime (23354172217613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23354172217631 is a prime.

It is a super-2 number, since 2×23354172217631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23354172217531) 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 as a sum of consecutive naturals, namely, 11677086108815 + 11677086108816.

It is an arithmetic number, because the mean of its divisors is an integer number (11677086108816).

Almost surely, 2^{23354172217631} is an apocalyptic number.

23354172217631 is a deficient number, since it is larger than the sum of its proper divisors (1).

23354172217631 is an equidigital number, since it uses as much as digits as its factorization.

23354172217631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 47.

The spelling of 23354172217631 in words is "twenty-three trillion, three hundred fifty-four billion, one hundred seventy-two million, two hundred seventeen thousand, six hundred thirty-one".