20120841 has 24 divisors (see below), whose sum is σ = 31973760. Its totient is φ = 12115296.

The previous prime is 20120839. The next prime is 20120851. The reversal of 20120841 is 14802102.

It is not a de Polignac number, because 20120841 - 2¹ = 20120839 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20120801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3670 + ... + 7328.

It is an arithmetic number, because the mean of its divisors is an integer number (1332240).

Almost surely, 2^20120841 is an apocalyptic number.

It is an amenable number.

20120841 is a deficient number, since it is larger than the sum of its proper divisors (11852919).

20120841 is a wasteful number, since it uses less digits than its factorization.

20120841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725 (or 3722 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 20120841 is about 4485.6260432631. The cubic root of 20120841 is about 271.9873525333.

Adding to 20120841 its reverse (14802102), we get a palindrome (34922943).

The spelling of 20120841 in words is "twenty million, one hundred twenty thousand, eight hundred forty-one".