109323421 has 2 divisors, whose sum is σ = 109323422. Its totient is φ = 109323420.

The previous prime is 109323373. The next prime is 109323433. The reversal of 109323421 is 124323901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90060100 + 19263321 = 9490^2 + 4389^2 .

It is a cyclic number.

It is not a de Polignac number, because 109323421 - 2⁹ = 109322909 is a prime.

It is a super-2 number, since 2×109323421² = 23903220758286482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109323491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54661710 + 54661711.

It is an arithmetic number, because the mean of its divisors is an integer number (54661711).

Almost surely, 2^109323421 is an apocalyptic number.

It is an amenable number.

109323421 is a deficient number, since it is larger than the sum of its proper divisors (1).

109323421 is an equidigital number, since it uses as much as digits as its factorization.

109323421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 109323421 is about 10455.7840930272. The cubic root of 109323421 is about 478.1576089568.

The spelling of 109323421 in words is "one hundred nine million, three hundred twenty-three thousand, four hundred twenty-one".