23147731253 has 2 divisors, whose sum is σ = 23147731254. Its totient is φ = 23147731252.

The previous prime is 23147731237. The next prime is 23147731273. The reversal of 23147731253 is 35213774132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19399475524 + 3748255729 = 139282^2 + 61223^2 .

It is a cyclic number.

It is not a de Polignac number, because 23147731253 - 2⁴ = 23147731237 is a prime.

It is a super-2 number, since 2×23147731253² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23147731273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11573865626 + 11573865627.

It is an arithmetic number, because the mean of its divisors is an integer number (11573865627).

Almost surely, 2^23147731253 is an apocalyptic number.

It is an amenable number.

23147731253 is a deficient number, since it is larger than the sum of its proper divisors (1).

23147731253 is an equidigital number, since it uses as much as digits as its factorization.

23147731253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 38.

The spelling of 23147731253 in words is "twenty-three billion, one hundred forty-seven million, seven hundred thirty-one thousand, two hundred fifty-three".