20113135 has 16 divisors (see below), whose sum is σ = 27662400. Its totient is φ = 13752576.

The previous prime is 20113127. The next prime is 20113139. The reversal of 20113135 is 53131102.

It is a cyclic number.

It is not a de Polignac number, because 20113135 - 2³ = 20113127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17251 + ... + 18379.

It is an arithmetic number, because the mean of its divisors is an integer number (1728900).

Almost surely, 2^20113135 is an apocalyptic number.

20113135 is a deficient number, since it is larger than the sum of its proper divisors (7549265).

20113135 is a wasteful number, since it uses less digits than its factorization.

20113135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 20113135 is about 4484.7669950623. The cubic root of 20113135 is about 271.9526256521.

Adding to 20113135 its reverse (53131102), we get a palindrome (73244237).

The spelling of 20113135 in words is "twenty million, one hundred thirteen thousand, one hundred thirty-five".