315201113 has 8 divisors (see below), whose sum is σ = 324650568. Its totient is φ = 305800704.

The previous prime is 315201109. The next prime is 315201121. The reversal of 315201113 is 311102513.

It can be written as a sum of positive squares in 4 ways, for example, as 85618009 + 229583104 = 9253^2 + 15152^2 .

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 315201113 - 2² = 315201109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315201091 and 315201100.

It is not an unprimeable number, because it can be changed into a prime (315201193) 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, 995 + ... + 25127.

It is an arithmetic number, because the mean of its divisors is an integer number (40581321).

Almost surely, 2^315201113 is an apocalyptic number.

It is an amenable number.

315201113 is a deficient number, since it is larger than the sum of its proper divisors (9449455).

315201113 is a wasteful number, since it uses less digits than its factorization.

315201113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24523.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 315201113 is about 17753.9041621836. The cubic root of 315201113 is about 680.5539841099.

Adding to 315201113 its reverse (311102513), we get a palindrome (626303626).

The spelling of 315201113 in words is "three hundred fifteen million, two hundred one thousand, one hundred thirteen".