1312330430 has 64 divisors (see below), whose sum is σ = 2480260608. Its totient is φ = 499478400.

The previous prime is 1312330429. The next prime is 1312330457. The reversal of 1312330430 is 340332131.

It is a super-2 number, since 2×1312330430² = 3444422315007969800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4637069 + ... + 4637351.

It is an arithmetic number, because the mean of its divisors is an integer number (38754072).

Almost surely, 2^1312330430 is an apocalyptic number.

1312330430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312330430 is a deficient number, since it is larger than the sum of its proper divisors (1167930178).

1312330430 is a wasteful number, since it uses less digits than its factorization.

1312330430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1312330430 is about 36226.1015015417. The cubic root of 1312330430 is about 1094.8326315088.

Adding to 1312330430 its reverse (340332131), we get a palindrome (1652662561).

The spelling of 1312330430 in words is "one billion, three hundred twelve million, three hundred thirty thousand, four hundred thirty".