23145234505331 has 2 divisors, whose sum is σ = 23145234505332. Its totient is φ = 23145234505330.

The previous prime is 23145234505321. The next prime is 23145234505333. The reversal of 23145234505331 is 13350543254132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23145234505331 - 2¹⁴ = 23145234488947 is a prime.

It is a super-2 number, since 2×23145234505331² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 23145234505333, 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 (23145234505333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572617252665 + 11572617252666.

It is an arithmetic number, because the mean of its divisors is an integer number (11572617252666).

Almost surely, 2^{23145234505331} is an apocalyptic number.

23145234505331 is a deficient number, since it is larger than the sum of its proper divisors (1).

23145234505331 is an equidigital number, since it uses as much as digits as its factorization.

23145234505331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 23145234505331 its reverse (13350543254132), we get a palindrome (36495777759463).

The spelling of 23145234505331 in words is "twenty-three trillion, one hundred forty-five billion, two hundred thirty-four million, five hundred five thousand, three hundred thirty-one".