101930291 has 2 divisors, whose sum is σ = 101930292. Its totient is φ = 101930290.

The previous prime is 101930267. The next prime is 101930293. The reversal of 101930291 is 192039101.

It is a strong prime.

It is an emirp because it is prime and its reverse (192039101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101930291 - 2²² = 97735987 is a prime.

Together with 101930293, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101930291.

It is not a weakly prime, because it can be changed into another prime (101930293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50965145 + 50965146.

It is an arithmetic number, because the mean of its divisors is an integer number (50965146).

Almost surely, 2^101930291 is an apocalyptic number.

101930291 is a deficient number, since it is larger than the sum of its proper divisors (1).

101930291 is an equidigital number, since it uses as much as digits as its factorization.

101930291 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 26.

The square root of 101930291 is about 10096.0532387661. The cubic root of 101930291 is about 467.1264095711.

Adding to 101930291 its reverse (192039101), we get a palindrome (293969392).

The spelling of 101930291 in words is "one hundred one million, nine hundred thirty thousand, two hundred ninety-one".