1213119493 has 2 divisors, whose sum is σ = 1213119494. Its totient is φ = 1213119492.

The previous prime is 1213119461. The next prime is 1213119547. The reversal of 1213119493 is 3949113121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122451009 + 90668484 = 33503^2 + 9522^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213119493 - 2⁵ = 1213119461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213119433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606559746 + 606559747.

It is an arithmetic number, because the mean of its divisors is an integer number (606559747).

Almost surely, 2^1213119493 is an apocalyptic number.

It is an amenable number.

1213119493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213119493 is an equidigital number, since it uses as much as digits as its factorization.

1213119493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 34.

The square root of 1213119493 is about 34829.8649581074. The cubic root of 1213119493 is about 1066.5171916306.

The spelling of 1213119493 in words is "one billion, two hundred thirteen million, one hundred nineteen thousand, four hundred ninety-three".