1312340030443 has 32 divisors (see below), whose sum is σ = 1520046815616. Its totient is φ = 1122198478848.

The previous prime is 1312340030383. The next prime is 1312340030447. The reversal of 1312340030443 is 3440300432131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312340030443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312340030447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7773255 + ... + 7940287.

It is an arithmetic number, because the mean of its divisors is an integer number (47501462988).

Almost surely, 2^{1312340030443} is an apocalyptic number.

1312340030443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312340030443 is a deficient number, since it is larger than the sum of its proper divisors (207706785173).

1312340030443 is a wasteful number, since it uses less digits than its factorization.

1312340030443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167623.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 1312340030443 its reverse (3440300432131), we get a palindrome (4752640462574).

The spelling of 1312340030443 in words is "one trillion, three hundred twelve billion, three hundred forty million, thirty thousand, four hundred forty-three".