313142121 has 12 divisors (see below), whose sum is σ = 459068272. Its totient is φ = 205645176.

The previous prime is 313142113. The next prime is 313142131. The reversal of 313142121 is 121241313.

It is not a de Polignac number, because 313142121 - 2³ = 313142113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313142094 and 313142103.

It is not an unprimeable number, because it can be changed into a prime (313142131) 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, 259051 + ... + 260256.

Almost surely, 2^313142121 is an apocalyptic number.

It is an amenable number.

313142121 is a deficient number, since it is larger than the sum of its proper divisors (145926151).

313142121 is a wasteful number, since it uses less digits than its factorization.

313142121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519380 (or 519377 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 313142121 is about 17695.8221340519. The cubic root of 313142121 is about 679.0688820406.

Adding to 313142121 its reverse (121241313), we get a palindrome (434383434).

The spelling of 313142121 in words is "three hundred thirteen million, one hundred forty-two thousand, one hundred twenty-one".