23331244987 has 2 divisors, whose sum is σ = 23331244988. Its totient is φ = 23331244986.

The previous prime is 23331244973. The next prime is 23331245023. The reversal of 23331244987 is 78944213332.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23331244987 is a prime.

It is not a weakly prime, because it can be changed into another prime (23331244687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665622493 + 11665622494.

It is an arithmetic number, because the mean of its divisors is an integer number (11665622494).

Almost surely, 2^23331244987 is an apocalyptic number.

23331244987 is a deficient number, since it is larger than the sum of its proper divisors (1).

23331244987 is an equidigital number, since it uses as much as digits as its factorization.

23331244987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 46.

The spelling of 23331244987 in words is "twenty-three billion, three hundred thirty-one million, two hundred forty-four thousand, nine hundred eighty-seven".