1212255134313 has 4 divisors (see below), whose sum is σ = 1616340179088. Its totient is φ = 808170089540.

The previous prime is 1212255134309. The next prime is 1212255134317. The reversal of 1212255134313 is 3134315522121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1212255134309) and next prime (1212255134317).

It is a cyclic number.

It is not a de Polignac number, because 1212255134313 - 2² = 1212255134309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212255134317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202042522383 + ... + 202042522388.

It is an arithmetic number, because the mean of its divisors is an integer number (404085044772).

Almost surely, 2^{1212255134313} is an apocalyptic number.

It is an amenable number.

1212255134313 is a deficient number, since it is larger than the sum of its proper divisors (404085044775).

1212255134313 is an equidigital number, since it uses as much as digits as its factorization.

1212255134313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404085044774.

The product of its digits is 21600, while the sum is 33.

The spelling of 1212255134313 in words is "one trillion, two hundred twelve billion, two hundred fifty-five million, one hundred thirty-four thousand, three hundred thirteen".