1121120971 has 2 divisors, whose sum is σ = 1121120972. Its totient is φ = 1121120970.

The previous prime is 1121120963. The next prime is 1121121017. The reversal of 1121120971 is 1790211211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121120971 - 2³ = 1121120963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121120071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560560485 + 560560486.

It is an arithmetic number, because the mean of its divisors is an integer number (560560486).

Almost surely, 2^1121120971 is an apocalyptic number.

1121120971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121120971 is an equidigital number, since it uses as much as digits as its factorization.

1121120971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 25.

The square root of 1121120971 is about 33483.1445805199. The cubic root of 1121120971 is about 1038.8451712328.

The spelling of 1121120971 in words is "one billion, one hundred twenty-one million, one hundred twenty thousand, nine hundred seventy-one".