1312211331199 has 4 divisors (see below), whose sum is σ = 1312794279400. Its totient is φ = 1311628383000.

The previous prime is 1312211331173. The next prime is 1312211331203. The reversal of 1312211331199 is 9911331122131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1312211331199 - 2²¹ = 1312209234047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312211331169) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 291470724 + ... + 291475225.

It is an arithmetic number, because the mean of its divisors is an integer number (328198569850).

Almost surely, 2^{1312211331199} is an apocalyptic number.

1312211331199 is a deficient number, since it is larger than the sum of its proper divisors (582948201).

1312211331199 is an equidigital number, since it uses as much as digits as its factorization.

1312211331199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582948200.

The product of its digits is 8748, while the sum is 37.

The spelling of 1312211331199 in words is "one trillion, three hundred twelve billion, two hundred eleven million, three hundred thirty-one thousand, one hundred ninety-nine".