31326113 has 8 divisors (see below), whose sum is σ = 38555328. Its totient is φ = 24785424.

The previous prime is 31326083. The next prime is 31326133. The reversal of 31326113 is 31162313.

It is a happy number.

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 31326113 - 2⁶ = 31326049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31326133) 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, 172031 + ... + 172212.

It is an arithmetic number, because the mean of its divisors is an integer number (4819416).

Almost surely, 2^31326113 is an apocalyptic number.

It is an amenable number.

31326113 is a deficient number, since it is larger than the sum of its proper divisors (7229215).

31326113 is a wasteful number, since it uses less digits than its factorization.

31326113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344263.

The product of its digits is 324, while the sum is 20.

The square root of 31326113 is about 5596.9735572004. The cubic root of 31326113 is about 315.2357787950.

Adding to 31326113 its reverse (31162313), we get a palindrome (62488426).

The spelling of 31326113 in words is "thirty-one million, three hundred twenty-six thousand, one hundred thirteen".