23270505509 has 2 divisors, whose sum is σ = 23270505510. Its totient is φ = 23270505508.

The previous prime is 23270505491. The next prime is 23270505541. The reversal of 23270505509 is 90550507232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23064496900 + 206008609 = 151870^2 + 14353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23270505509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23270505109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11635252754 + 11635252755.

It is an arithmetic number, because the mean of its divisors is an integer number (11635252755).

Almost surely, 2^23270505509 is an apocalyptic number.

It is an amenable number.

23270505509 is a deficient number, since it is larger than the sum of its proper divisors (1).

23270505509 is an equidigital number, since it uses as much as digits as its factorization.

23270505509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94500, while the sum is 38.

The spelling of 23270505509 in words is "twenty-three billion, two hundred seventy million, five hundred five thousand, five hundred nine".