1213003201187 has 2 divisors, whose sum is σ = 1213003201188. Its totient is φ = 1213003201186.

The previous prime is 1213003201183. The next prime is 1213003201247. The reversal of 1213003201187 is 7811023003121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213003201187 - 2² = 1213003201183 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213003201181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606501600593 + 606501600594.

It is an arithmetic number, because the mean of its divisors is an integer number (606501600594).

Almost surely, 2^{1213003201187} is an apocalyptic number.

1213003201187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213003201187 is an equidigital number, since it uses as much as digits as its factorization.

1213003201187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 1213003201187 in words is "one trillion, two hundred thirteen billion, three million, two hundred one thousand, one hundred eighty-seven".