23381377233 has 24 divisors (see below), whose sum is σ = 32004675360. Its totient is φ = 15182693760.

The previous prime is 23381377199. The next prime is 23381377241. The reversal of 23381377233 is 33277318332.

It is not a de Polignac number, because 23381377233 - 2²² = 23377182929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23381377273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1161373 + ... + 1181333.

It is an arithmetic number, because the mean of its divisors is an integer number (1333528140).

Almost surely, 2^23381377233 is an apocalyptic number.

It is an amenable number.

23381377233 is a deficient number, since it is larger than the sum of its proper divisors (8623298127).

23381377233 is a wasteful number, since it uses less digits than its factorization.

23381377233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20209 (or 20156 counting only the distinct ones).

The product of its digits is 381024, while the sum is 42.

The spelling of 23381377233 in words is "twenty-three billion, three hundred eighty-one million, three hundred seventy-seven thousand, two hundred thirty-three".