31212055214467 has 2 divisors, whose sum is σ = 31212055214468. Its totient is φ = 31212055214466.

The previous prime is 31212055214437. The next prime is 31212055214471. The reversal of 31212055214467 is 76441255021213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31212055214467 is a prime.

It is not a weakly prime, because it can be changed into another prime (31212055214437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15606027607233 + 15606027607234.

It is an arithmetic number, because the mean of its divisors is an integer number (15606027607234).

Almost surely, 2^{31212055214467} is an apocalyptic number.

31212055214467 is a deficient number, since it is larger than the sum of its proper divisors (1).

31212055214467 is an equidigital number, since it uses as much as digits as its factorization.

31212055214467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 31212055214467 in words is "thirty-one trillion, two hundred twelve billion, fifty-five million, two hundred fourteen thousand, four hundred sixty-seven".