315117114421 has 4 divisors (see below), whose sum is σ = 316372561344. Its totient is φ = 313861667500.

The previous prime is 315117114413. The next prime is 315117114457. The reversal of 315117114421 is 124411711513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315117114421 - 2³ = 315117114413 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 (315117114401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627723085 + ... + 627723586.

It is an arithmetic number, because the mean of its divisors is an integer number (79093140336).

Almost surely, 2^315117114421 is an apocalyptic number.

It is an amenable number.

315117114421 is a deficient number, since it is larger than the sum of its proper divisors (1255446923).

315117114421 is a wasteful number, since it uses less digits than its factorization.

315117114421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255446922.

The product of its digits is 3360, while the sum is 31.

Adding to 315117114421 its reverse (124411711513), we get a palindrome (439528825934).

The spelling of 315117114421 in words is "three hundred fifteen billion, one hundred seventeen million, one hundred fourteen thousand, four hundred twenty-one".