20020413135 has 64 divisors (see below), whose sum is σ = 33956904960. Its totient is φ = 10052190720.

The previous prime is 20020413131. The next prime is 20020413163. The reversal of 20020413135 is 53131402002.

It is not a de Polignac number, because 20020413135 - 2² = 20020413131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020413131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5902290 + ... + 5905680.

It is an arithmetic number, because the mean of its divisors is an integer number (530576640).

Almost surely, 2^20020413135 is an apocalyptic number.

20020413135 is a deficient number, since it is larger than the sum of its proper divisors (13936491825).

20020413135 is a wasteful number, since it uses less digits than its factorization.

20020413135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20020413135 its reverse (53131402002), we get a palindrome (73151815137).

The spelling of 20020413135 in words is "twenty billion, twenty million, four hundred thirteen thousand, one hundred thirty-five".