23491348253 has 2 divisors, whose sum is σ = 23491348254. Its totient is φ = 23491348252.

The previous prime is 23491348249. The next prime is 23491348271. The reversal of 23491348253 is 35284319432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21261430969 + 2229917284 = 145813^2 + 47222^2 .

It is a cyclic number.

It is not a de Polignac number, because 23491348253 - 2² = 23491348249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23491368253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11745674126 + 11745674127.

It is an arithmetic number, because the mean of its divisors is an integer number (11745674127).

Almost surely, 2^23491348253 is an apocalyptic number.

It is an amenable number.

23491348253 is a deficient number, since it is larger than the sum of its proper divisors (1).

23491348253 is an equidigital number, since it uses as much as digits as its factorization.

23491348253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 44.

The spelling of 23491348253 in words is "twenty-three billion, four hundred ninety-one million, three hundred forty-eight thousand, two hundred fifty-three".