1231313413 has 8 divisors (see below), whose sum is σ = 1347240960. Its totient is φ = 1116050880.

The previous prime is 1231313401. The next prime is 1231313423. The reversal of 1231313413 is 3143131321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231313413 is a prime.

It is a super-2 number, since 2×1231313413² = 3032265442067417138, 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 (1231313423) 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, 162373 + ... + 169786.

It is an arithmetic number, because the mean of its divisors is an integer number (168405120).

Almost surely, 2^1231313413 is an apocalyptic number.

It is an amenable number.

1231313413 is a deficient number, since it is larger than the sum of its proper divisors (115927547).

1231313413 is a wasteful number, since it uses less digits than its factorization.

1231313413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332507.

The product of its digits is 648, while the sum is 22.

The square root of 1231313413 is about 35090.0757052475. The cubic root of 1231313413 is about 1071.8225012075.

Adding to 1231313413 its reverse (3143131321), we get a palindrome (4374444734).

The spelling of 1231313413 in words is "one billion, two hundred thirty-one million, three hundred thirteen thousand, four hundred thirteen".