351111253340513 has 2 divisors, whose sum is σ = 351111253340514. Its totient is φ = 351111253340512.

The previous prime is 351111253340479. The next prime is 351111253340581. The reversal of 351111253340513 is 315043352111153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342047011107169 + 9064242233344 = 18494513^2 + 3010688^2 .

It is a cyclic number.

It is not a de Polignac number, because 351111253340513 - 2²⁰ = 351111252291937 is a prime.

It is a super-2 number, since 2×351111253340513² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (351111253342513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175555626670256 + 175555626670257.

It is an arithmetic number, because the mean of its divisors is an integer number (175555626670257).

Almost surely, 2^{351111253340513} is an apocalyptic number.

It is an amenable number.

351111253340513 is a deficient number, since it is larger than the sum of its proper divisors (1).

351111253340513 is an equidigital number, since it uses as much as digits as its factorization.

351111253340513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 351111253340513 in words is "three hundred fifty-one trillion, one hundred eleven billion, two hundred fifty-three million, three hundred forty thousand, five hundred thirteen".