1304012403 has 12 divisors (see below), whose sum is σ = 1883934000. Its totient is φ = 869175216.

The previous prime is 1304012377. The next prime is 1304012407. The reversal of 1304012403 is 3042104031.

It is not a de Polignac number, because 1304012403 - 2¹⁴ = 1303996019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1304012407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52473 + ... + 73221.

It is an arithmetic number, because the mean of its divisors is an integer number (156994500).

Almost surely, 2^1304012403 is an apocalyptic number.

1304012403 is a deficient number, since it is larger than the sum of its proper divisors (579921597).

1304012403 is a wasteful number, since it uses less digits than its factorization.

1304012403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27738 (or 27735 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1304012403 is about 36111.1119047863. Note that the first 3 decimals coincide. The cubic root of 1304012403 is about 1092.5145780529.

Adding to 1304012403 its reverse (3042104031), we get a palindrome (4346116434).

The spelling of 1304012403 in words is "one billion, three hundred four million, twelve thousand, four hundred three".