1313012004 has 24 divisors (see below), whose sum is σ = 3169340160. Its totient is φ = 422578464.

The previous prime is 1313011993. The next prime is 1313012027. The reversal of 1313012004 is 4002103131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886164 + ... + 1886859.

It is an arithmetic number, because the mean of its divisors is an integer number (132055840).

Almost surely, 2^1313012004 is an apocalyptic number.

It is an amenable number.

1313012004 is an abundant number, since it is smaller than the sum of its proper divisors (1856328156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313012004 is a wasteful number, since it uses less digits than its factorization.

1313012004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773059 (or 3773057 counting only the distinct ones).

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

The square root of 1313012004 is about 36235.5075030004. The cubic root of 1313012004 is about 1095.0221367056.

Adding to 1313012004 its reverse (4002103131), we get a palindrome (5315115135).

The spelling of 1313012004 in words is "one billion, three hundred thirteen million, twelve thousand, four".