3421210120987 has 2 divisors, whose sum is σ = 3421210120988. Its totient is φ = 3421210120986.

The previous prime is 3421210120879. The next prime is 3421210121057. The reversal of 3421210120987 is 7890210121243.

Together with previous prime (3421210120879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3421210120987 is a prime.

It is not a weakly prime, because it can be changed into another prime (3421210120487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710605060493 + 1710605060494.

It is an arithmetic number, because the mean of its divisors is an integer number (1710605060494).

Almost surely, 2^{3421210120987} is an apocalyptic number.

3421210120987 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421210120987 is an equidigital number, since it uses as much as digits as its factorization.

3421210120987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 3421210120987 in words is "three trillion, four hundred twenty-one billion, two hundred ten million, one hundred twenty thousand, nine hundred eighty-seven".