1304231513 has 8 divisors (see below), whose sum is σ = 1406697600. Its totient is φ = 1202071248.

The previous prime is 1304231503. The next prime is 1304231527. The reversal of 1304231513 is 3151324031.

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 1304231513 - 2¹⁶ = 1304165977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304231503) 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, 67553 + ... + 84686.

It is an arithmetic number, because the mean of its divisors is an integer number (175837200).

Almost surely, 2^1304231513 is an apocalyptic number.

1304231513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1304231513 is a deficient number, since it is larger than the sum of its proper divisors (102466087).

1304231513 is a wasteful number, since it uses less digits than its factorization.

1304231513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152911.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1304231513 is about 36114.1456080578. The cubic root of 1304231513 is about 1092.5757654727.

Adding to 1304231513 its reverse (3151324031), we get a palindrome (4455555544).

The spelling of 1304231513 in words is "one billion, three hundred four million, two hundred thirty-one thousand, five hundred thirteen".