20112030331033 has 4 divisors (see below), whose sum is σ = 20805548618340. Its totient is φ = 19418512043728.

The previous prime is 20112030331007. The next prime is 20112030331051. The reversal of 20112030331033 is 33013303021102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15621687095184 + 4490343235849 = 3952428^2 + 2119043^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112030331033 - 2²⁵ = 20111996776601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112030330995 and 20112030331013.

It is not an unprimeable number, because it can be changed into a prime (20112030331093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346759143610 + ... + 346759143667.

It is an arithmetic number, because the mean of its divisors is an integer number (5201387154585).

Almost surely, 2^{20112030331033} is an apocalyptic number.

It is an amenable number.

20112030331033 is a deficient number, since it is larger than the sum of its proper divisors (693518287307).

20112030331033 is an equidigital number, since it uses as much as digits as its factorization.

20112030331033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693518287306.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 20112030331033 its reverse (33013303021102), we get a palindrome (53125333352135).

The spelling of 20112030331033 in words is "twenty trillion, one hundred twelve billion, thirty million, three hundred thirty-one thousand, thirty-three".