20362121 has 8 divisors (see below), whose sum is σ = 21994560. Its totient is φ = 18739152.

The previous prime is 20362087. The next prime is 20362151. The reversal of 20362121 is 12126302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20362121 - 2⁶ = 20362057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20362121.

It is not an unprimeable number, because it can be changed into a prime (20362151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2486 + ... + 6848.

It is an arithmetic number, because the mean of its divisors is an integer number (2749320).

Almost surely, 2^20362121 is an apocalyptic number.

It is an amenable number.

20362121 is a deficient number, since it is larger than the sum of its proper divisors (1632439).

20362121 is a wasteful number, since it uses less digits than its factorization.

20362121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20362121 is about 4512.4406921310. The cubic root of 20362121 is about 273.0702185791.

Adding to 20362121 its reverse (12126302), we get a palindrome (32488423).

The spelling of 20362121 in words is "twenty million, three hundred sixty-two thousand, one hundred twenty-one".