253366446121 has 2 divisors, whose sum is σ = 253366446122. Its totient is φ = 253366446120.

The previous prime is 253366446083. The next prime is 253366446133. The reversal of 253366446121 is 121644663352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253366256025 + 190096 = 503355^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 253366446121 - 2¹⁷ = 253366315049 is a prime.

It is not a weakly prime, because it can be changed into another prime (253366446161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126683223060 + 126683223061.

It is an arithmetic number, because the mean of its divisors is an integer number (126683223061).

Almost surely, 2^253366446121 is an apocalyptic number.

It is an amenable number.

253366446121 is a deficient number, since it is larger than the sum of its proper divisors (1).

253366446121 is an equidigital number, since it uses as much as digits as its factorization.

253366446121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 43.

The spelling of 253366446121 in words is "two hundred fifty-three billion, three hundred sixty-six million, four hundred forty-six thousand, one hundred twenty-one".