3405120111 has 12 divisors (see below), whose sum is σ = 5207830992. Its totient is φ = 2136545856.

The previous prime is 3405120079. The next prime is 3405120127. The reversal of 3405120111 is 1110215043.

3405120111 is a `hidden beast` number, since 3 + 40 + 512 + 0 + 111 = 666.

It is not a de Polignac number, because 3405120111 - 2⁵ = 3405120079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405120211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11127691 + ... + 11127996.

It is an arithmetic number, because the mean of its divisors is an integer number (433985916).

Almost surely, 2^3405120111 is an apocalyptic number.

3405120111 is a deficient number, since it is larger than the sum of its proper divisors (1802710881).

3405120111 is a wasteful number, since it uses less digits than its factorization.

3405120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22255710 (or 22255707 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 3405120111 is about 58353.4070213557. The cubic root of 3405120111 is about 1504.4490297100.

Adding to 3405120111 its reverse (1110215043), we get a palindrome (4515335154).

The spelling of 3405120111 in words is "three billion, four hundred five million, one hundred twenty thousand, one hundred eleven".