113021719 has 2 divisors, whose sum is σ = 113021720. Its totient is φ = 113021718.

The previous prime is 113021693. The next prime is 113021731. The reversal of 113021719 is 917120311.

It is a strong prime.

It is an emirp because it is prime and its reverse (917120311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113021719 - 2¹⁹ = 112497431 is a prime.

It is a super-2 number, since 2×113021719² = 25547817931429922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113021693 and 113021702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113021749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56510859 + 56510860.

It is an arithmetic number, because the mean of its divisors is an integer number (56510860).

Almost surely, 2^113021719 is an apocalyptic number.

113021719 is a deficient number, since it is larger than the sum of its proper divisors (1).

113021719 is an equidigital number, since it uses as much as digits as its factorization.

113021719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 113021719 is about 10631.1673394788. The cubic root of 113021719 is about 483.4897848920.

The spelling of 113021719 in words is "one hundred thirteen million, twenty-one thousand, seven hundred nineteen".