312212322413939 has 2 divisors, whose sum is σ = 312212322413940. Its totient is φ = 312212322413938.

The previous prime is 312212322413903. The next prime is 312212322413963. The reversal of 312212322413939 is 939314223212213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312212322413939 is a prime.

It is a super-2 number, since 2×312212322413939² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312212322413893 and 312212322413902.

It is not a weakly prime, because it can be changed into another prime (312212022413939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156106161206969 + 156106161206970.

It is an arithmetic number, because the mean of its divisors is an integer number (156106161206970).

Almost surely, 2^{312212322413939} is an apocalyptic number.

312212322413939 is a deficient number, since it is larger than the sum of its proper divisors (1).

312212322413939 is an equidigital number, since it uses as much as digits as its factorization.

312212322413939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 47.

The spelling of 312212322413939 in words is "three hundred twelve trillion, two hundred twelve billion, three hundred twenty-two million, four hundred thirteen thousand, nine hundred thirty-nine".