101100121979 has 2 divisors, whose sum is σ = 101100121980. Its totient is φ = 101100121978.

The previous prime is 101100121957. The next prime is 101100122009. The reversal of 101100121979 is 979121001101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101100121979 - 2⁸ = 101100121723 is a prime.

It is not a weakly prime, because it can be changed into another prime (101100121919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550060989 + 50550060990.

It is an arithmetic number, because the mean of its divisors is an integer number (50550060990).

Almost surely, 2^101100121979 is an apocalyptic number.

101100121979 is a deficient number, since it is larger than the sum of its proper divisors (1).

101100121979 is an equidigital number, since it uses as much as digits as its factorization.

101100121979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 32.

The spelling of 101100121979 in words is "one hundred one billion, one hundred million, one hundred twenty-one thousand, nine hundred seventy-nine".