23508213545329 has 2 divisors, whose sum is σ = 23508213545330. Its totient is φ = 23508213545328.

The previous prime is 23508213545269. The next prime is 23508213545359. The reversal of 23508213545329 is 92354531280532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19232189244304 + 4276024301025 = 4385452^2 + 2067855^2 .

It is a cyclic number.

It is not a de Polignac number, because 23508213545329 - 2³⁹ = 22958457731441 is a prime.

It is a super-2 number, since 2×23508213545329² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23508213545359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11754106772664 + 11754106772665.

It is an arithmetic number, because the mean of its divisors is an integer number (11754106772665).

Almost surely, 2^{23508213545329} is an apocalyptic number.

It is an amenable number.

23508213545329 is a deficient number, since it is larger than the sum of its proper divisors (1).

23508213545329 is an equidigital number, since it uses as much as digits as its factorization.

23508213545329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 23508213545329 in words is "twenty-three trillion, five hundred eight billion, two hundred thirteen million, five hundred forty-five thousand, three hundred twenty-nine".