1322131193 has 2 divisors, whose sum is σ = 1322131194. Its totient is φ = 1322131192.

The previous prime is 1322131189. The next prime is 1322131231. The reversal of 1322131193 is 3911312231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1167452224 + 154678969 = 34168^2 + 12437^2 .

It is an emirp because it is prime and its reverse (3911312231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1322131193 - 2² = 1322131189 is a prime.

It is a super-3 number, since 3×1322131193³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1322133193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661065596 + 661065597.

It is an arithmetic number, because the mean of its divisors is an integer number (661065597).

Almost surely, 2^1322131193 is an apocalyptic number.

It is an amenable number.

1322131193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322131193 is an equidigital number, since it uses as much as digits as its factorization.

1322131193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 26.

The square root of 1322131193 is about 36361.1219986403. The cubic root of 1322131193 is about 1097.5513557433.

The spelling of 1322131193 in words is "one billion, three hundred twenty-two million, one hundred thirty-one thousand, one hundred ninety-three".