2120023131205 has 16 divisors (see below), whose sum is σ = 2986040304000. Its totient is φ = 1414440142272.

The previous prime is 2120023131203. The next prime is 2120023131253. The reversal of 2120023131205 is 5021313200212.

It is a cyclic number.

It is not a de Polignac number, because 2120023131205 - 2¹ = 2120023131203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120023131203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 818540455 + ... + 818543044.

It is an arithmetic number, because the mean of its divisors is an integer number (186627519000).

Almost surely, 2^{2120023131205} is an apocalyptic number.

It is an amenable number.

2120023131205 is a deficient number, since it is larger than the sum of its proper divisors (866017172795).

2120023131205 is a wasteful number, since it uses less digits than its factorization.

2120023131205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637083548.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 2120023131205 its reverse (5021313200212), we get a palindrome (7141336331417).

The spelling of 2120023131205 in words is "two trillion, one hundred twenty billion, twenty-three million, one hundred thirty-one thousand, two hundred five".