1312230012194 has 4 divisors (see below), whose sum is σ = 1968345018294. Its totient is φ = 656115006096.

The previous prime is 1312230012169. The next prime is 1312230012199. The reversal of 1312230012194 is 4912100322131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1150605911569 + 161624100625 = 1072663^2 + 402025^2 .

It is not an unprimeable number, because it can be changed into a prime (1312230012199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328057503047 + ... + 328057503050.

Almost surely, 2^{1312230012194} is an apocalyptic number.

1312230012194 is a deficient number, since it is larger than the sum of its proper divisors (656115006100).

1312230012194 is an equidigital number, since it uses as much as digits as its factorization.

1312230012194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656115006099.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 1312230012194 in words is "one trillion, three hundred twelve billion, two hundred thirty million, twelve thousand, one hundred ninety-four".