312211424387 has 2 divisors, whose sum is σ = 312211424388. Its totient is φ = 312211424386.

The previous prime is 312211424383. The next prime is 312211424477. The reversal of 312211424387 is 783424112213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312211424387 - 2² = 312211424383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312211424387.

It is not a weakly prime, because it can be changed into another prime (312211424383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156105712193 + 156105712194.

It is an arithmetic number, because the mean of its divisors is an integer number (156105712194).

Almost surely, 2^312211424387 is an apocalyptic number.

312211424387 is a deficient number, since it is larger than the sum of its proper divisors (1).

312211424387 is an equidigital number, since it uses as much as digits as its factorization.

312211424387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 38.

The spelling of 312211424387 in words is "three hundred twelve billion, two hundred eleven million, four hundred twenty-four thousand, three hundred eighty-seven".