23315101231 has 4 divisors (see below), whose sum is σ = 24686577792. Its totient is φ = 21943624672.

The previous prime is 23315101211. The next prime is 23315101259. The reversal of 23315101231 is 13210151332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23315101231 - 2¹¹ = 23315099183 is a prime.

It is a super-2 number, since 2×23315101231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23315101211) 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 in 3 ways as a sum of consecutive naturals, for example, 685738255 + ... + 685738288.

It is an arithmetic number, because the mean of its divisors is an integer number (6171644448).

Almost surely, 2^23315101231 is an apocalyptic number.

23315101231 is a deficient number, since it is larger than the sum of its proper divisors (1371476561).

23315101231 is a wasteful number, since it uses less digits than its factorization.

23315101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371476560.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 23315101231 its reverse (13210151332), we get a palindrome (36525252563).

The spelling of 23315101231 in words is "twenty-three billion, three hundred fifteen million, one hundred one thousand, two hundred thirty-one".