31113130 has 8 divisors (see below), whose sum is σ = 56003652. Its totient is φ = 12445248.

The previous prime is 31113113. The next prime is 31113167. The reversal of 31113130 is 3131113.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31102929 + 10201 = 5577^2 + 101^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 31113130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555647 + ... + 1555666.

Almost surely, 2^31113130 is an apocalyptic number.

31113130 is a deficient number, since it is larger than the sum of its proper divisors (24890522).

31113130 is a wasteful number, since it uses less digits than its factorization.

31113130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111320.

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

The square root of 31113130 is about 5577.9144848232. The cubic root of 31113130 is about 314.5197350882.

Adding to 31113130 its reverse (3131113), we get a palindrome (34244243).

It can be divided in two parts, 3111 and 3130, that added together give a square (6241 = 79²).

The spelling of 31113130 in words is "thirty-one million, one hundred thirteen thousand, one hundred thirty".