1312508212669 has 8 divisors (see below), whose sum is σ = 1348035395840. Its totient is φ = 1276983871056.

The previous prime is 1312508212621. The next prime is 1312508212733. The reversal of 1312508212669 is 9662128052131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312508212669 - 2¹⁹ = 1312507688381 is a prime.

It is a super-2 number, since 2×1312508212669² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312508212469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242992 + ... + 1638310.

It is an arithmetic number, because the mean of its divisors is an integer number (168504424480).

Almost surely, 2^{1312508212669} is an apocalyptic number.

It is an amenable number.

1312508212669 is a deficient number, since it is larger than the sum of its proper divisors (35527183171).

1312508212669 is a wasteful number, since it uses less digits than its factorization.

1312508212669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420779.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 1312508212669 in words is "one trillion, three hundred twelve billion, five hundred eight million, two hundred twelve thousand, six hundred sixty-nine".