312120012587 has 2 divisors, whose sum is σ = 312120012588. Its totient is φ = 312120012586.

The previous prime is 312120012527. The next prime is 312120012637. The reversal of 312120012587 is 785210021213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312120012587 - 2¹² = 312120008491 is a prime.

It is not a weakly prime, because it can be changed into another prime (312120012517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156060006293 + 156060006294.

It is an arithmetic number, because the mean of its divisors is an integer number (156060006294).

Almost surely, 2^312120012587 is an apocalyptic number.

312120012587 is a deficient number, since it is larger than the sum of its proper divisors (1).

312120012587 is an equidigital number, since it uses as much as digits as its factorization.

312120012587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 312120012587 in words is "three hundred twelve billion, one hundred twenty million, twelve thousand, five hundred eighty-seven".