23379531287 has 4 divisors (see below), whose sum is σ = 26719464336. Its totient is φ = 20039598240.

The previous prime is 23379531221. The next prime is 23379531359. The reversal of 23379531287 is 78213597332.

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 23379531287 - 2²⁶ = 23312422423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23379531187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1669966514 + ... + 1669966527.

It is an arithmetic number, because the mean of its divisors is an integer number (6679866084).

Almost surely, 2^23379531287 is an apocalyptic number.

23379531287 is a deficient number, since it is larger than the sum of its proper divisors (3339933049).

23379531287 is an equidigital number, since it uses as much as digits as its factorization.

23379531287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339933048.

The product of its digits is 1905120, while the sum is 50.

The spelling of 23379531287 in words is "twenty-three billion, three hundred seventy-nine million, five hundred thirty-one thousand, two hundred eighty-seven".