20422113 has 16 divisors (see below), whose sum is σ = 28115136. Its totient is φ = 13176000.

The previous prime is 20422097. The next prime is 20422121. The reversal of 20422113 is 31122402.

It is not a de Polignac number, because 20422113 - 2⁴ = 20422097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20422092 and 20422101.

It is not an unprimeable number, because it can be changed into a prime (20422133) 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, 27495 + ... + 28227.

It is an arithmetic number, because the mean of its divisors is an integer number (1757196).

Almost surely, 2^20422113 is an apocalyptic number.

It is an amenable number.

20422113 is a deficient number, since it is larger than the sum of its proper divisors (7693023).

20422113 is a wasteful number, since it uses less digits than its factorization.

20422113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20422113 is about 4519.0832034828. The cubic root of 20422113 is about 273.3381337976.

Adding to 20422113 its reverse (31122402), we get a palindrome (51544515).

The spelling of 20422113 in words is "twenty million, four hundred twenty-two thousand, one hundred thirteen".