1120991939 has 2 divisors, whose sum is σ = 1120991940. Its totient is φ = 1120991938.

The previous prime is 1120991933. The next prime is 1120991953. The reversal of 1120991939 is 9391990211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1120991939 - 2¹⁶ = 1120926403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1120991939.

It is not a weakly prime, because it can be changed into another prime (1120991933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560495969 + 560495970.

It is an arithmetic number, because the mean of its divisors is an integer number (560495970).

Almost surely, 2^1120991939 is an apocalyptic number.

1120991939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120991939 is an equidigital number, since it uses as much as digits as its factorization.

1120991939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39366, while the sum is 44.

The square root of 1120991939 is about 33481.2177048566. The cubic root of 1120991939 is about 1038.8053154645.

The spelling of 1120991939 in words is "one billion, one hundred twenty million, nine hundred ninety-one thousand, nine hundred thirty-nine".