20201120 has 24 divisors (see below), whose sum is σ = 47725524. Its totient is φ = 8080384.

The previous prime is 20201113. The next prime is 20201141. The reversal of 20201120 is 2110202.

It can be written as a sum of positive squares in 2 ways, for example, as 20106256 + 94864 = 4484^2 + 308^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 20201098 and 20201107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62969 + ... + 63288.

Almost surely, 2^20201120 is an apocalyptic number.

20201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201120 is an abundant number, since it is smaller than the sum of its proper divisors (27524404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201120 is a wasteful number, since it uses less digits than its factorization.

20201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126272 (or 126264 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 20201120 is about 4494.5656074864. The cubic root of 20201120 is about 272.3486014763.

Adding to 20201120 its reverse (2110202), we get a palindrome (22311322).

The spelling of 20201120 in words is "twenty million, two hundred one thousand, one hundred twenty".