312123332211331 has 8 divisors (see below), whose sum is σ = 314499650214240. Its totient is φ = 309751929035328.

The previous prime is 312123332211319. The next prime is 312123332211337. The reversal of 312123332211331 is 133112233321213.

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 312123332211331 - 2¹⁹ = 312123331687043 is a prime.

It is a super-2 number, since 2×312123332211331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312123332211293 and 312123332211302.

It is not an unprimeable number, because it can be changed into a prime (312123332211337) 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, 1228579231 + ... + 1228833256.

It is an arithmetic number, because the mean of its divisors is an integer number (39312456276780).

Almost surely, 2^{312123332211331} is an apocalyptic number.

312123332211331 is a deficient number, since it is larger than the sum of its proper divisors (2376318002909).

312123332211331 is a wasteful number, since it uses less digits than its factorization.

312123332211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457413453.

The product of its digits is 11664, while the sum is 31.

Adding to 312123332211331 its reverse (133112233321213), we get a palindrome (445235565532544).

The spelling of 312123332211331 in words is "three hundred twelve trillion, one hundred twenty-three billion, three hundred thirty-two million, two hundred eleven thousand, three hundred thirty-one".