1351637311105 has 4 divisors (see below), whose sum is σ = 1621964773332. Its totient is φ = 1081309848880.

The previous prime is 1351637311009. The next prime is 1351637311133. The reversal of 1351637311105 is 5011137361531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 500911478001 + 850725833104 = 707751^2 + 922348^2 .

It is not a de Polignac number, because 1351637311105 - 2²⁷ = 1351503093377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135163731106 + ... + 135163731115.

It is an arithmetic number, because the mean of its divisors is an integer number (405491193333).

Almost surely, 2^{1351637311105} is an apocalyptic number.

It is an amenable number.

1351637311105 is a deficient number, since it is larger than the sum of its proper divisors (270327462227).

1351637311105 is an equidigital number, since it uses as much as digits as its factorization.

1351637311105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270327462226.

The product of its (nonzero) digits is 28350, while the sum is 37.

The spelling of 1351637311105 in words is "one trillion, three hundred fifty-one billion, six hundred thirty-seven million, three hundred eleven thousand, one hundred five".