20041032121 has 4 divisors (see below), whose sum is σ = 21862944144. Its totient is φ = 18219120100.

The previous prime is 20041032061. The next prime is 20041032157. The reversal of 20041032121 is 12123014002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20041032121 - 2²³ = 20032643513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20041032095 and 20041032104.

It is not an unprimeable number, because it can be changed into a prime (20041032421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910955995 + ... + 910956016.

It is an arithmetic number, because the mean of its divisors is an integer number (5465736036).

Almost surely, 2^20041032121 is an apocalyptic number.

It is an amenable number.

20041032121 is a deficient number, since it is larger than the sum of its proper divisors (1821912023).

20041032121 is a wasteful number, since it uses less digits than its factorization.

20041032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821912022.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20041032121 its reverse (12123014002), we get a palindrome (32164046123).

The spelling of 20041032121 in words is "twenty billion, forty-one million, thirty-two thousand, one hundred twenty-one".