1121313091 has 2 divisors, whose sum is σ = 1121313092. Its totient is φ = 1121313090.

The previous prime is 1121313049. The next prime is 1121313119. The reversal of 1121313091 is 1903131211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121313091 - 2¹⁷ = 1121182019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121313001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560656545 + 560656546.

It is an arithmetic number, because the mean of its divisors is an integer number (560656546).

Almost surely, 2^1121313091 is an apocalyptic number.

1121313091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121313091 is an equidigital number, since it uses as much as digits as its factorization.

1121313091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1121313091 is about 33486.0133637912. The cubic root of 1121313091 is about 1038.9045081346.

The spelling of 1121313091 in words is "one billion, one hundred twenty-one million, three hundred thirteen thousand, ninety-one".