1355100145121 has 4 divisors (see below), whose sum is σ = 1355108899092. Its totient is φ = 1355091391152.

The previous prime is 1355100145093. The next prime is 1355100145163. The reversal of 1355100145121 is 1215410015531.

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 943307137600 + 411793007521 = 971240^2 + 641711^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355100145121 - 2¹⁴ = 1355100128737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351100145121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4140530 + ... + 4455803.

It is an arithmetic number, because the mean of its divisors is an integer number (338777224773).

Almost surely, 2^{1355100145121} is an apocalyptic number.

It is an amenable number.

1355100145121 is a deficient number, since it is larger than the sum of its proper divisors (8753971).

1355100145121 is an equidigital number, since it uses as much as digits as its factorization.

1355100145121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8753970.

The product of its (nonzero) digits is 3000, while the sum is 29.

The spelling of 1355100145121 in words is "one trillion, three hundred fifty-five billion, one hundred million, one hundred forty-five thousand, one hundred twenty-one".