1351041756021 has 12 divisors (see below), whose sum is σ = 1951545607648. Its totient is φ = 900675650664.

The previous prime is 1351041755983. The next prime is 1351041756083. The reversal of 1351041756021 is 1206571401531.

1351041756021 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 0 + 41 + 7 + 5 + 602 + 1 = 666.

It is not a de Polignac number, because 1351041756021 - 2⁷ = 1351041755893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351041736021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1110145 + ... + 1983558.

Almost surely, 2^{1351041756021} is an apocalyptic number.

It is an amenable number.

1351041756021 is a deficient number, since it is larger than the sum of its proper divisors (600503851627).

1351041756021 is a wasteful number, since it uses less digits than its factorization.

1351041756021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142232 (or 3142229 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 1351041756021 in words is "one trillion, three hundred fifty-one billion, forty-one million, seven hundred fifty-six thousand, twenty-one".