109413121 has 2 divisors, whose sum is σ = 109413122. Its totient is φ = 109413120.

The previous prime is 109413103. The next prime is 109413137. The reversal of 109413121 is 121314901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109411600 + 1521 = 10460^2 + 39^2 .

It is an emirp because it is prime and its reverse (121314901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109413121 - 2¹¹ = 109411073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109413092 and 109413101.

It is not a weakly prime, because it can be changed into another prime (109410121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54706560 + 54706561.

It is an arithmetic number, because the mean of its divisors is an integer number (54706561).

Almost surely, 2^109413121 is an apocalyptic number.

It is an amenable number.

109413121 is a deficient number, since it is larger than the sum of its proper divisors (1).

109413121 is an equidigital number, since it uses as much as digits as its factorization.

109413121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 109413121 is about 10460.0727052923. The cubic root of 109413121 is about 478.2883495058.

The spelling of 109413121 in words is "one hundred nine million, four hundred thirteen thousand, one hundred twenty-one".