1280322151355 has 16 divisors (see below), whose sum is σ = 1662969014784. Its totient is φ = 940669322880.

The previous prime is 1280322151333. The next prime is 1280322151421. The reversal of 1280322151355 is 5531512230821.

It is not a de Polignac number, because 1280322151355 - 2²⁰ = 1280321102779 is a prime.

It is a super-2 number, since 2×1280322151355² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49980251 + ... + 50005860.

It is an arithmetic number, because the mean of its divisors is an integer number (103935563424).

Almost surely, 2^{1280322151355} is an apocalyptic number.

1280322151355 is a deficient number, since it is larger than the sum of its proper divisors (382646863429).

1280322151355 is a wasteful number, since it uses less digits than its factorization.

1280322151355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99986326.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 1280322151355 in words is "one trillion, two hundred eighty billion, three hundred twenty-two million, one hundred fifty-one thousand, three hundred fifty-five".