1312023243434 has 16 divisors (see below), whose sum is σ = 1969695232128. Its totient is φ = 655458373152.

The previous prime is 1312023243359. The next prime is 1312023243449. The reversal of 1312023243434 is 4343423202131.

It is a super-2 number, since 2×1312023243434² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312023243434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13343519 + ... + 13441485.

It is an arithmetic number, because the mean of its divisors is an integer number (123105952008).

Almost surely, 2^{1312023243434} is an apocalyptic number.

1312023243434 is a deficient number, since it is larger than the sum of its proper divisors (657671988694).

1312023243434 is a wasteful number, since it uses less digits than its factorization.

1312023243434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103549.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 1312023243434 its reverse (4343423202131), we get a palindrome (5655446445565).

The spelling of 1312023243434 in words is "one trillion, three hundred twelve billion, twenty-three million, two hundred forty-three thousand, four hundred thirty-four".