23231552387 has 2 divisors, whose sum is σ = 23231552388. Its totient is φ = 23231552386.

The previous prime is 23231552371. The next prime is 23231552417. The reversal of 23231552387 is 78325513232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23231552387 - 2⁴ = 23231552371 is a prime.

It is not a weakly prime, because it can be changed into another prime (23231552327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615776193 + 11615776194.

It is an arithmetic number, because the mean of its divisors is an integer number (11615776194).

Almost surely, 2^23231552387 is an apocalyptic number.

23231552387 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231552387 is an equidigital number, since it uses as much as digits as its factorization.

23231552387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 41.

The spelling of 23231552387 in words is "twenty-three billion, two hundred thirty-one million, five hundred fifty-two thousand, three hundred eighty-seven".