13402111 has 4 divisors (see below), whose sum is σ = 13713832. Its totient is φ = 13090392.

The previous prime is 13402099. The next prime is 13402133. The reversal of 13402111 is 11120431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13402111 - 2¹⁷ = 13271039 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 13402091 and 13402100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155796 + ... + 155881.

It is an arithmetic number, because the mean of its divisors is an integer number (3428458).

Almost surely, 2^13402111 is an apocalyptic number.

13402111 is a deficient number, since it is larger than the sum of its proper divisors (311721).

13402111 is an equidigital number, since it uses as much as digits as its factorization.

13402111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311720.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 13402111 is about 3660.8893728164. The cubic root of 13402111 is about 237.5332459461.

Adding to 13402111 its reverse (11120431), we get a palindrome (24522542).

The spelling of 13402111 in words is "thirteen million, four hundred two thousand, one hundred eleven".