1312113229 has 16 divisors (see below), whose sum is σ = 1610704000. Its totient is φ = 1065470112.

The previous prime is 1312113217. The next prime is 1312113251. The reversal of 1312113229 is 9223112131.

It is not a de Polignac number, because 1312113229 - 2⁵ = 1312113197 is a prime.

It is a super-2 number, since 2×1312113229² = 3443282251433612882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312113289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94152 + ... + 107185.

It is an arithmetic number, because the mean of its divisors is an integer number (100669000).

Almost surely, 2^1312113229 is an apocalyptic number.

1312113229 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1312113229 is a deficient number, since it is larger than the sum of its proper divisors (298590771).

1312113229 is an equidigital number, since it uses as much as digits as its factorization.

1312113229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201377 (or 201363 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 1312113229 is about 36223.1035252365. The cubic root of 1312113229 is about 1094.7722270412.

The spelling of 1312113229 in words is "one billion, three hundred twelve million, one hundred thirteen thousand, two hundred twenty-nine".