1121101291 has 2 divisors, whose sum is σ = 1121101292. Its totient is φ = 1121101290.

The previous prime is 1121101283. The next prime is 1121101307. The reversal of 1121101291 is 1921011211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121101291 - 2³ = 1121101283 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121101271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560550645 + 560550646.

It is an arithmetic number, because the mean of its divisors is an integer number (560550646).

Almost surely, 2^1121101291 is an apocalyptic number.

1121101291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121101291 is an equidigital number, since it uses as much as digits as its factorization.

1121101291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

The square root of 1121101291 is about 33482.8507000225. The cubic root of 1121101291 is about 1038.8390926165.

The spelling of 1121101291 in words is "one billion, one hundred twenty-one million, one hundred one thousand, two hundred ninety-one".