313131001 has 8 divisors (see below), whose sum is σ = 329863520. Its totient is φ = 296423712.

The previous prime is 313130989. The next prime is 313131017. The reversal of 313131001 is 100131313.

It is a happy number.

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

It is not a de Polignac number, because 313131001 - 2²³ = 304742393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313135001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22621 + ... + 33733.

It is an arithmetic number, because the mean of its divisors is an integer number (41232940).

Almost surely, 2^313131001 is an apocalyptic number.

It is an amenable number.

313131001 is a deficient number, since it is larger than the sum of its proper divisors (16732519).

313131001 is a wasteful number, since it uses less digits than its factorization.

313131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12615.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 313131001 is about 17695.5079328060. The cubic root of 313131001 is about 679.0608437998.

Adding to 313131001 its reverse (100131313), we get a palindrome (413262314).

It can be divided in two parts, 31313 and 1001, that multiplied together give a palindrome (31344313).

The spelling of 313131001 in words is "three hundred thirteen million, one hundred thirty-one thousand, one".