1304012013 has 16 divisors (see below), whose sum is σ = 1852695360. Its totient is φ = 812987136.

The previous prime is 1304011981. The next prime is 1304012051. The reversal of 1304012013 is 3102104031.

It is not a de Polignac number, because 1304012013 - 2⁵ = 1304011981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304011983 and 1304012001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304012813) 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, 73423 + ... + 89436.

It is an arithmetic number, because the mean of its divisors is an integer number (115793460).

Almost surely, 2^1304012013 is an apocalyptic number.

It is an amenable number.

1304012013 is a deficient number, since it is larger than the sum of its proper divisors (548683347).

1304012013 is a wasteful number, since it uses less digits than its factorization.

1304012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163036.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1304012013 is about 36111.1065047860. The cubic root of 1304012013 is about 1092.5144691376.

Adding to 1304012013 its reverse (3102104031), we get a palindrome (4406116044).

The spelling of 1304012013 in words is "one billion, three hundred four million, twelve thousand, thirteen".