23042531387 has 2 divisors, whose sum is σ = 23042531388. Its totient is φ = 23042531386.

The previous prime is 23042531359. The next prime is 23042531471. The reversal of 23042531387 is 78313524032.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23042531387 - 2¹⁰ = 23042530363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23042531387.

It is not a weakly prime, because it can be changed into another prime (23042531327) 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, 11521265693 + 11521265694.

It is an arithmetic number, because the mean of its divisors is an integer number (11521265694).

Almost surely, 2^23042531387 is an apocalyptic number.

23042531387 is a deficient number, since it is larger than the sum of its proper divisors (1).

23042531387 is an equidigital number, since it uses as much as digits as its factorization.

23042531387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 23042531387 in words is "twenty-three billion, forty-two million, five hundred thirty-one thousand, three hundred eighty-seven".