23047531387 has 2 divisors, whose sum is σ = 23047531388. Its totient is φ = 23047531386.

The previous prime is 23047531333. The next prime is 23047531421. The reversal of 23047531387 is 78313574032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23047531387 - 2¹⁹ = 23047007099 is a prime.

It is not a weakly prime, because it can be changed into another prime (23042531387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11523765693 + 11523765694.

It is an arithmetic number, because the mean of its divisors is an integer number (11523765694).

Almost surely, 2^23047531387 is an apocalyptic number.

23047531387 is a deficient number, since it is larger than the sum of its proper divisors (1).

23047531387 is an equidigital number, since it uses as much as digits as its factorization.

23047531387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 23047531387 in words is "twenty-three billion, forty-seven million, five hundred thirty-one thousand, three hundred eighty-seven".