20031033131033 has 4 divisors (see below), whose sum is σ = 20103347330340. Its totient is φ = 19958718931728.

The previous prime is 20031033131017. The next prime is 20031033131041. The reversal of 20031033131033 is 33013133013002.

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 1247849853184 + 18783183277849 = 1117072^2 + 4333957^2 .

It is a cyclic number.

It is not a de Polignac number, because 20031033131033 - 2⁴ = 20031033131017 is a prime.

It is a super-2 number, since 2×20031033131033² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20031033131063) 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, 36157099238 + ... + 36157099791.

It is an arithmetic number, because the mean of its divisors is an integer number (5025836832585).

Almost surely, 2^{20031033131033} is an apocalyptic number.

It is an amenable number.

20031033131033 is a deficient number, since it is larger than the sum of its proper divisors (72314199307).

20031033131033 is an equidigital number, since it uses as much as digits as its factorization.

20031033131033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72314199306.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 20031033131033 its reverse (33013133013002), we get a palindrome (53044166144035).

The spelling of 20031033131033 in words is "twenty trillion, thirty-one billion, thirty-three million, one hundred thirty-one thousand, thirty-three".