1312304104 has 8 divisors (see below), whose sum is σ = 2460570210. Its totient is φ = 656152048.

The previous prime is 1312304101. The next prime is 1312304113. The reversal of 1312304104 is 4014032131.

It can be written as a sum of positive squares in only one way, i.e., 1206172900 + 106131204 = 34730^2 + 10302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1312304104² = 3444284122750485632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312304101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82018999 + ... + 82019014.

Almost surely, 2^1312304104 is an apocalyptic number.

It is an amenable number.

1312304104 is a deficient number, since it is larger than the sum of its proper divisors (1148266106).

1312304104 is a wasteful number, since it uses less digits than its factorization.

1312304104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164038019 (or 164038015 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1312304104 is about 36225.7381429282. The cubic root of 1312304104 is about 1094.8253104978.

Adding to 1312304104 its reverse (4014032131), we get a palindrome (5326336235).

The spelling of 1312304104 in words is "one billion, three hundred twelve million, three hundred four thousand, one hundred four".