312112000211213 has 4 divisors (see below), whose sum is σ = 330471529635420. Its totient is φ = 293752470787008.

The previous prime is 312112000211183. The next prime is 312112000211311.

312112000211213 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 244674760578889 + 67437239632324 = 15642083^2 + 8212018^2 .

It is a cyclic number.

It is not a de Polignac number, because 312112000211213 - 2¹⁴ = 312112000194829 is a prime.

It is a super-2 number, since 2×312112000211213² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312112000291213) 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, 9179764712078 + ... + 9179764712111.

It is an arithmetic number, because the mean of its divisors is an integer number (82617882408855).

Almost surely, 2^{312112000211213} is an apocalyptic number.

It is an amenable number.

312112000211213 is a deficient number, since it is larger than the sum of its proper divisors (18359529424207).

312112000211213 is a wasteful number, since it uses less digits than its factorization.

312112000211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18359529424206.

The product of its (nonzero) digits is 144, while the sum is 20.

It can be divided in two parts, 312112000 and 211213, that added together give a palindrome (312323213).

The spelling of 312112000211213 in words is "three hundred twelve trillion, one hundred twelve billion, two hundred eleven thousand, two hundred thirteen".