1120129979 has 2 divisors, whose sum is σ = 1120129980. Its totient is φ = 1120129978.

The previous prime is 1120129973. The next prime is 1120129981. The reversal of 1120129979 is 9799210211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120129979 is a prime.

Together with 1120129981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1120129973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560064989 + 560064990.

It is an arithmetic number, because the mean of its divisors is an integer number (560064990).

Almost surely, 2^1120129979 is an apocalyptic number.

1120129979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120129979 is an equidigital number, since it uses as much as digits as its factorization.

1120129979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 41.

The square root of 1120129979 is about 33468.3429377673. The cubic root of 1120129979 is about 1038.5389923395.

The spelling of 1120129979 in words is "one billion, one hundred twenty million, one hundred twenty-nine thousand, nine hundred seventy-nine".