1213310212187 has 2 divisors, whose sum is σ = 1213310212188. Its totient is φ = 1213310212186.

The previous prime is 1213310212063. The next prime is 1213310212207. The reversal of 1213310212187 is 7812120133121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213310212187 - 2⁸ = 1213310211931 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213310212687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606655106093 + 606655106094.

It is an arithmetic number, because the mean of its divisors is an integer number (606655106094).

Almost surely, 2^{1213310212187} is an apocalyptic number.

1213310212187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213310212187 is an equidigital number, since it uses as much as digits as its factorization.

1213310212187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 1213310212187 in words is "one trillion, two hundred thirteen billion, three hundred ten million, two hundred twelve thousand, one hundred eighty-seven".