101311979 has 2 divisors, whose sum is σ = 101311980. Its totient is φ = 101311978.

The previous prime is 101311967. The next prime is 101311997. The reversal of 101311979 is 979113101.

Together with next prime (101311997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101311979 - 2⁴ = 101311963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101311949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50655989 + 50655990.

It is an arithmetic number, because the mean of its divisors is an integer number (50655990).

Almost surely, 2^101311979 is an apocalyptic number.

101311979 is a deficient number, since it is larger than the sum of its proper divisors (1).

101311979 is an equidigital number, since it uses as much as digits as its factorization.

101311979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 32.

The square root of 101311979 is about 10065.3851888539. The cubic root of 101311979 is about 466.1799592911.

The spelling of 101311979 in words is "one hundred one million, three hundred eleven thousand, nine hundred seventy-nine".