23501322313231 has 6 divisors (see below), whose sum is σ = 27338272895040. Its totient is φ = 20143990554156.

The previous prime is 23501322313229. The next prime is 23501322313277. The reversal of 23501322313231 is 13231322310532.

It is not a de Polignac number, because 23501322313231 - 2¹ = 23501322313229 is a prime.

It is a super-2 number, since 2×23501322313231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23501322313193 and 23501322313202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23501322313631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239809411311 + ... + 239809411408.

It is an arithmetic number, because the mean of its divisors is an integer number (4556378815840).

Almost surely, 2^{23501322313231} is an apocalyptic number.

23501322313231 is a deficient number, since it is larger than the sum of its proper divisors (3836950581809).

23501322313231 is an equidigital number, since it uses as much as digits as its factorization.

23501322313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479618822733 (or 479618822726 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 23501322313231 its reverse (13231322310532), we get a palindrome (36732644623763).

The spelling of 23501322313231 in words is "twenty-three trillion, five hundred one billion, three hundred twenty-two million, three hundred thirteen thousand, two hundred thirty-one".