1122831389 has 2 divisors, whose sum is σ = 1122831390. Its totient is φ = 1122831388.

The previous prime is 1122831373. The next prime is 1122831401. The reversal of 1122831389 is 9831382211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 578402500 + 544428889 = 24050^2 + 23333^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122831389 - 2⁴ = 1122831373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122831349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561415694 + 561415695.

It is an arithmetic number, because the mean of its divisors is an integer number (561415695).

Almost surely, 2^1122831389 is an apocalyptic number.

It is an amenable number.

1122831389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122831389 is an equidigital number, since it uses as much as digits as its factorization.

1122831389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 38.

The square root of 1122831389 is about 33508.6763242000. The cubic root of 1122831389 is about 1039.3732012670.

The spelling of 1122831389 in words is "one billion, one hundred twenty-two million, eight hundred thirty-one thousand, three hundred eighty-nine".