23040559387 has 2 divisors, whose sum is σ = 23040559388. Its totient is φ = 23040559386.

The previous prime is 23040559379. The next prime is 23040559433. The reversal of 23040559387 is 78395504032.

It is an a-pointer prime, because the next prime (23040559433) can be obtained adding 23040559387 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23040559387 - 2³ = 23040559379 is a prime.

It is not a weakly prime, because it can be changed into another prime (23040559337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11520279693 + 11520279694.

It is an arithmetic number, because the mean of its divisors is an integer number (11520279694).

Almost surely, 2^23040559387 is an apocalyptic number.

23040559387 is a deficient number, since it is larger than the sum of its proper divisors (1).

23040559387 is an equidigital number, since it uses as much as digits as its factorization.

23040559387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 23040559387 in words is "twenty-three billion, forty million, five hundred fifty-nine thousand, three hundred eighty-seven".