1251053554313 has 2 divisors, whose sum is σ = 1251053554314. Its totient is φ = 1251053554312.

The previous prime is 1251053554307. The next prime is 1251053554349. The reversal of 1251053554313 is 3134553501521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1241412670969 + 9640883344 = 1114187^2 + 98188^2 .

It is a cyclic number.

It is not a de Polignac number, because 1251053554313 - 2⁴ = 1251053554297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1251053254313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625526777156 + 625526777157.

It is an arithmetic number, because the mean of its divisors is an integer number (625526777157).

Almost surely, 2^{1251053554313} is an apocalyptic number.

It is an amenable number.

1251053554313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251053554313 is an equidigital number, since it uses as much as digits as its factorization.

1251053554313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 1251053554313 in words is "one trillion, two hundred fifty-one billion, fifty-three million, five hundred fifty-four thousand, three hundred thirteen".