23154905603 has 2 divisors, whose sum is σ = 23154905604. Its totient is φ = 23154905602.

The previous prime is 23154905581. The next prime is 23154905623. The reversal of 23154905603 is 30650945132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23154905603 is a prime.

It is a super-2 number, since 2×23154905603² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23154905623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11577452801 + 11577452802.

It is an arithmetic number, because the mean of its divisors is an integer number (11577452802).

Almost surely, 2^23154905603 is an apocalyptic number.

23154905603 is a deficient number, since it is larger than the sum of its proper divisors (1).

23154905603 is an equidigital number, since it uses as much as digits as its factorization.

23154905603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 23154905603 in words is "twenty-three billion, one hundred fifty-four million, nine hundred five thousand, six hundred three".