315121294955 has 8 divisors (see below), whose sum is σ = 378973008672. Its totient is φ = 251545399488.

The previous prime is 315121294949. The next prime is 315121294973. The reversal of 315121294955 is 559492121513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315121294955 - 2¹⁰ = 315121293931 is a prime.

It is a super-2 number, since 2×315121294955² (a number of 24 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 7 ways as a sum of consecutive naturals, for example, 68952047 + ... + 68956616.

It is an arithmetic number, because the mean of its divisors is an integer number (47371626084).

Almost surely, 2^315121294955 is an apocalyptic number.

315121294955 is a deficient number, since it is larger than the sum of its proper divisors (63851713717).

315121294955 is a wasteful number, since it uses less digits than its factorization.

315121294955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137909125.

The product of its digits is 486000, while the sum is 47.

The spelling of 315121294955 in words is "three hundred fifteen billion, one hundred twenty-one million, two hundred ninety-four thousand, nine hundred fifty-five".