1201329979 has 2 divisors, whose sum is σ = 1201329980. Its totient is φ = 1201329978.

The previous prime is 1201329937. The next prime is 1201330003. The reversal of 1201329979 is 9799231021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201329979 - 2²⁵ = 1167775547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201329919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600664989 + 600664990.

It is an arithmetic number, because the mean of its divisors is an integer number (600664990).

Almost surely, 2^1201329979 is an apocalyptic number.

1201329979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201329979 is an equidigital number, since it uses as much as digits as its factorization.

1201329979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 1201329979 is about 34660.2074286926. The cubic root of 1201329979 is about 1063.0510113409.

The spelling of 1201329979 in words is "one billion, two hundred one million, three hundred twenty-nine thousand, nine hundred seventy-nine".