1304131403 has 8 divisors (see below), whose sum is σ = 1340880576. Its totient is φ = 1267617600.

The previous prime is 1304131399. The next prime is 1304131417. The reversal of 1304131403 is 3041314031.

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

It is a cyclic number.

It is not a de Polignac number, because 1304131403 - 2² = 1304131399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304131603) 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, 47576 + ... + 69797.

It is an arithmetic number, because the mean of its divisors is an integer number (167610072).

Almost surely, 2^1304131403 is an apocalyptic number.

1304131403 is a deficient number, since it is larger than the sum of its proper divisors (36749173).

1304131403 is a wasteful number, since it uses less digits than its factorization.

1304131403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117685.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1304131403 is about 36112.7595594687. The cubic root of 1304131403 is about 1092.5478101704.

Adding to 1304131403 its reverse (3041314031), we get a palindrome (4345445434).

It can be divided in two parts, 13041 and 31403, that added together give a palindrome (44444).

The spelling of 1304131403 in words is "one billion, three hundred four million, one hundred thirty-one thousand, four hundred three".