101323139 has 2 divisors, whose sum is σ = 101323140. Its totient is φ = 101323138.

The previous prime is 101323133. The next prime is 101323153. The reversal of 101323139 is 931323101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101323139 - 2²⁰ = 100274563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101323133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50661569 + 50661570.

It is an arithmetic number, because the mean of its divisors is an integer number (50661570).

Almost surely, 2^101323139 is an apocalyptic number.

101323139 is a deficient number, since it is larger than the sum of its proper divisors (1).

101323139 is an equidigital number, since it uses as much as digits as its factorization.

101323139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 101323139 is about 10065.9395487952. The cubic root of 101323139 is about 466.1970759815.

The spelling of 101323139 in words is "one hundred one million, three hundred twenty-three thousand, one hundred thirty-nine".