12401109 has 24 divisors (see below), whose sum is σ = 21677760. Its totient is φ = 6668928.

The previous prime is 12401107. The next prime is 12401111. The reversal of 12401109 is 90110421.

It is an interprime number because it is at equal distance from previous prime (12401107) and next prime (12401111).

It is not a de Polignac number, because 12401109 - 2¹ = 12401107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12401091 and 12401100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4719 + ... + 6860.

It is an arithmetic number, because the mean of its divisors is an integer number (903240).

Almost surely, 2^12401109 is an apocalyptic number.

It is an amenable number.

12401109 is a deficient number, since it is larger than the sum of its proper divisors (9276651).

12401109 is a wasteful number, since it uses less digits than its factorization.

12401109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11609 (or 11606 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 12401109 is about 3521.5208362297. The cubic root of 12401109 is about 231.4658054600.

The spelling of 12401109 in words is "twelve million, four hundred one thousand, one hundred nine".