312312121213213 has 12 divisors (see below), whose sum is σ = 343288660781920. Its totient is φ = 283917267861480.

The previous prime is 312312121213129. The next prime is 312312121213237.

312312121213213 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-312312121213213 is a prime.

It is a super-2 number, since 2×312312121213213² (a number of 30 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 (312312128213213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 735795 + ... + 25003312.

Almost surely, 2^{312312121213213} is an apocalyptic number.

It is an amenable number.

312312121213213 is a deficient number, since it is larger than the sum of its proper divisors (30976539568707).

312312121213213 is a wasteful number, since it uses less digits than its factorization.

312312121213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25839408 (or 25839397 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The spelling of 312312121213213 in words is "three hundred twelve trillion, three hundred twelve billion, one hundred twenty-one million, two hundred thirteen thousand, two hundred thirteen".