1213233193 has 2 divisors, whose sum is σ = 1213233194. Its totient is φ = 1213233192.

The previous prime is 1213233139. The next prime is 1213233211. The reversal of 1213233193 is 3913323121.

Together with previous prime (1213233139) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 948455209 + 264777984 = 30797^2 + 16272^2 .

It is an emirp because it is prime and its reverse (3913323121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213233193 - 2²⁵ = 1179678761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213231193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606616596 + 606616597.

It is an arithmetic number, because the mean of its divisors is an integer number (606616597).

Almost surely, 2^1213233193 is an apocalyptic number.

It is an amenable number.

1213233193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213233193 is an equidigital number, since it uses as much as digits as its factorization.

1213233193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 28.

The square root of 1213233193 is about 34831.4971398015. The cubic root of 1213233193 is about 1066.5505104743.

The spelling of 1213233193 in words is "one billion, two hundred thirteen million, two hundred thirty-three thousand, one hundred ninety-three".