23231552287 has 2 divisors, whose sum is σ = 23231552288. Its totient is φ = 23231552286.

The previous prime is 23231552219. The next prime is 23231552327. The reversal of 23231552287 is 78225513232.

It is an a-pointer prime, because the next prime (23231552327) can be obtained adding 23231552287 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23231552287 - 2⁷ = 23231552159 is a prime.

It is a super-2 number, since 2×23231552287² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23231552207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615776143 + 11615776144.

It is an arithmetic number, because the mean of its divisors is an integer number (11615776144).

Almost surely, 2^23231552287 is an apocalyptic number.

23231552287 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231552287 is an equidigital number, since it uses as much as digits as its factorization.

23231552287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 40.

The spelling of 23231552287 in words is "twenty-three billion, two hundred thirty-one million, five hundred fifty-two thousand, two hundred eighty-seven".