23170997741 has 2 divisors, whose sum is σ = 23170997742. Its totient is φ = 23170997740.

The previous prime is 23170997737. The next prime is 23170997797. The reversal of 23170997741 is 14779907132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15368808841 + 7802188900 = 123971^2 + 88330^2 .

It is a cyclic number.

It is not a de Polignac number, because 23170997741 - 2² = 23170997737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23170997741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23170997141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11585498870 + 11585498871.

It is an arithmetic number, because the mean of its divisors is an integer number (11585498871).

Almost surely, 2^23170997741 is an apocalyptic number.

It is an amenable number.

23170997741 is a deficient number, since it is larger than the sum of its proper divisors (1).

23170997741 is an equidigital number, since it uses as much as digits as its factorization.

23170997741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 50.

The spelling of 23170997741 in words is "twenty-three billion, one hundred seventy million, nine hundred ninety-seven thousand, seven hundred forty-one".