23243421277 has 2 divisors, whose sum is σ = 23243421278. Its totient is φ = 23243421276.

The previous prime is 23243421251. The next prime is 23243421353. The reversal of 23243421277 is 77212434232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23227588836 + 15832441 = 152406^2 + 3979^2 .

It is a cyclic number.

It is not a de Polignac number, because 23243421277 - 2¹¹ = 23243419229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23243421217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11621710638 + 11621710639.

It is an arithmetic number, because the mean of its divisors is an integer number (11621710639).

Almost surely, 2^23243421277 is an apocalyptic number.

It is an amenable number.

23243421277 is a deficient number, since it is larger than the sum of its proper divisors (1).

23243421277 is an equidigital number, since it uses as much as digits as its factorization.

23243421277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 37.

The spelling of 23243421277 in words is "twenty-three billion, two hundred forty-three million, four hundred twenty-one thousand, two hundred seventy-seven".