23531213233 has 16 divisors (see below), whose sum is σ = 27066594240. Its totient is φ = 20232288000.

The previous prime is 23531213227. The next prime is 23531213239. The reversal of 23531213233 is 33231213532.

It is an interprime number because it is at equal distance from previous prime (23531213227) and next prime (23531213239).

It is a cyclic number.

It is not a de Polignac number, because 23531213233 - 2¹³ = 23531205041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23531213239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31941 + ... + 219277.

It is an arithmetic number, because the mean of its divisors is an integer number (1691662140).

Almost surely, 2^23531213233 is an apocalyptic number.

It is an amenable number.

23531213233 is a deficient number, since it is larger than the sum of its proper divisors (3535381007).

23531213233 is a wasteful number, since it uses less digits than its factorization.

23531213233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187968.

The product of its digits is 9720, while the sum is 28.

Adding to 23531213233 its reverse (33231213532), we get a palindrome (56762426765).

The spelling of 23531213233 in words is "twenty-three billion, five hundred thirty-one million, two hundred thirteen thousand, two hundred thirty-three".