20441011121 has 8 divisors (see below), whose sum is σ = 20584483584. Its totient is φ = 20298001680.

The previous prime is 20441011117. The next prime is 20441011133. The reversal of 20441011121 is 12111014402.

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 20441011121 - 2² = 20441011117 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 20441011121.

It is not an unprimeable number, because it can be changed into a prime (20441019121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26915 + ... + 203976.

It is an arithmetic number, because the mean of its divisors is an integer number (2573060448).

Almost surely, 2^20441011121 is an apocalyptic number.

It is an amenable number.

20441011121 is a deficient number, since it is larger than the sum of its proper divisors (143472463).

20441011121 is a wasteful number, since it uses less digits than its factorization.

20441011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231511.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20441011121 its reverse (12111014402), we get a palindrome (32552025523).

The spelling of 20441011121 in words is "twenty billion, four hundred forty-one million, eleven thousand, one hundred twenty-one".