23115203331 has 32 divisors (see below), whose sum is σ = 37473580800. Its totient is φ = 12491182080.

The previous prime is 23115203329. The next prime is 23115203381. The reversal of 23115203331 is 13330251132.

It is not a de Polignac number, because 23115203331 - 2¹ = 23115203329 is a prime.

It is a super-2 number, since 2×23115203331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23115203381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1073646 + ... + 1094963.

It is an arithmetic number, because the mean of its divisors is an integer number (1171049400).

Almost surely, 2^23115203331 is an apocalyptic number.

23115203331 is a deficient number, since it is larger than the sum of its proper divisors (14358377469).

23115203331 is a wasteful number, since it uses less digits than its factorization.

23115203331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168659.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 23115203331 its reverse (13330251132), we get a palindrome (36445454463).

The spelling of 23115203331 in words is "twenty-three billion, one hundred fifteen million, two hundred three thousand, three hundred thirty-one".