20034203110161 has 32 divisors (see below), whose sum is σ = 27551379916800. Its totient is φ = 12943070568960.

The previous prime is 20034203110123. The next prime is 20034203110177. The reversal of 20034203110161 is 16101130243002.

It is a happy number.

It is not a de Polignac number, because 20034203110161 - 2¹⁴ = 20034203093777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20034203110111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95492385 + ... + 95701953.

It is an arithmetic number, because the mean of its divisors is an integer number (860980622400).

Almost surely, 2^{20034203110161} is an apocalyptic number.

It is an amenable number.

20034203110161 is a deficient number, since it is larger than the sum of its proper divisors (7517176806639).

20034203110161 is a wasteful number, since it uses less digits than its factorization.

20034203110161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217309.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 20034203110161 its reverse (16101130243002), we get a palindrome (36135333353163).

The spelling of 20034203110161 in words is "twenty trillion, thirty-four billion, two hundred three million, one hundred ten thousand, one hundred sixty-one".