23261913901 has 2 divisors, whose sum is σ = 23261913902. Its totient is φ = 23261913900.

The previous prime is 23261913887. The next prime is 23261913907. The reversal of 23261913901 is 10931916232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23210217801 + 51696100 = 152349^2 + 7190^2 .

It is a cyclic number.

It is not a de Polignac number, because 23261913901 - 2¹¹ = 23261911853 is a prime.

It is a super-3 number, since 3×23261913901³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23261913907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11630956950 + 11630956951.

It is an arithmetic number, because the mean of its divisors is an integer number (11630956951).

Almost surely, 2^23261913901 is an apocalyptic number.

It is an amenable number.

23261913901 is a deficient number, since it is larger than the sum of its proper divisors (1).

23261913901 is an equidigital number, since it uses as much as digits as its factorization.

23261913901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 23261913901 in words is "twenty-three billion, two hundred sixty-one million, nine hundred thirteen thousand, nine hundred one".