20113032031121 has 8 divisors (see below), whose sum is σ = 20988744261120. Its totient is φ = 19237422515872.

The previous prime is 20113032031117. The next prime is 20113032031139. The reversal of 20113032031121 is 12113023031102.

It is a happy number.

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 20113032031121 - 2² = 20113032031117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113032031093 and 20113032031102.

It is not an unprimeable number, because it can be changed into a prime (20113032031321) 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, 25278401 + ... + 26061918.

It is an arithmetic number, because the mean of its divisors is an integer number (2623593032640).

Almost surely, 2^{20113032031121} is an apocalyptic number.

It is an amenable number.

20113032031121 is a deficient number, since it is larger than the sum of its proper divisors (875712229999).

20113032031121 is a wasteful number, since it uses less digits than its factorization.

20113032031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51357375.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20113032031121 its reverse (12113023031102), we get a palindrome (32226055062223).

The spelling of 20113032031121 in words is "twenty trillion, one hundred thirteen billion, thirty-two million, thirty-one thousand, one hundred twenty-one".