1231313110 has 16 divisors (see below), whose sum is σ = 2217442032. Its totient is φ = 492285600.

The previous prime is 1231313099. The next prime is 1231313113. The reversal of 1231313110 is 113131321.

It is a super-2 number, since 2×1231313110² = 3032263949715744200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231313113) 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, 7581 + ... + 50200.

It is an arithmetic number, because the mean of its divisors is an integer number (138590127).

Almost surely, 2^1231313110 is an apocalyptic number.

1231313110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231313110 is a deficient number, since it is larger than the sum of its proper divisors (986128922).

1231313110 is a wasteful number, since it uses less digits than its factorization.

1231313110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59919.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1231313110 is about 35090.0713877872. The cubic root of 1231313110 is about 1071.8224132899.

Adding to 1231313110 its reverse (113131321), we get a palindrome (1344444431).

The spelling of 1231313110 in words is "one billion, two hundred thirty-one million, three hundred thirteen thousand, one hundred ten".