1351036115021 has 2 divisors, whose sum is σ = 1351036115022. Its totient is φ = 1351036115020.

The previous prime is 1351036115017. The next prime is 1351036115027. The reversal of 1351036115021 is 1205116301531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 784349353225 + 566686761796 = 885635^2 + 752786^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351036115021 - 2² = 1351036115017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351036115027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675518057510 + 675518057511.

It is an arithmetic number, because the mean of its divisors is an integer number (675518057511).

Almost surely, 2^{1351036115021} is an apocalyptic number.

It is an amenable number.

1351036115021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351036115021 is an equidigital number, since it uses as much as digits as its factorization.

1351036115021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The spelling of 1351036115021 in words is "one trillion, three hundred fifty-one billion, thirty-six million, one hundred fifteen thousand, twenty-one".