121230979 has 2 divisors, whose sum is σ = 121230980. Its totient is φ = 121230978.

The previous prime is 121230971. The next prime is 121231003. The reversal of 121230979 is 979032121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121230979 - 2³ = 121230971 is a prime.

It is not a weakly prime, because it can be changed into another prime (121230971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615489 + 60615490.

It is an arithmetic number, because the mean of its divisors is an integer number (60615490).

Almost surely, 2^121230979 is an apocalyptic number.

121230979 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230979 is an equidigital number, since it uses as much as digits as its factorization.

121230979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 121230979 is about 11010.4940397786. The cubic root of 121230979 is about 494.9232666827.

The spelling of 121230979 in words is "one hundred twenty-one million, two hundred thirty thousand, nine hundred seventy-nine".