23247020387 has 2 divisors, whose sum is σ = 23247020388. Its totient is φ = 23247020386.

The previous prime is 23247020371. The next prime is 23247020449. The reversal of 23247020387 is 78302074232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23247020387 - 2⁴ = 23247020371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23247020387.

It is not a weakly prime, because it can be changed into another prime (23247020317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11623510193 + 11623510194.

It is an arithmetic number, because the mean of its divisors is an integer number (11623510194).

Almost surely, 2^23247020387 is an apocalyptic number.

23247020387 is a deficient number, since it is larger than the sum of its proper divisors (1).

23247020387 is an equidigital number, since it uses as much as digits as its factorization.

23247020387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 23247020387 in words is "twenty-three billion, two hundred forty-seven million, twenty thousand, three hundred eighty-seven".