20420031124233 has 24 divisors (see below), whose sum is σ = 31766300966400. Its totient is φ = 12565457704800.

The previous prime is 20420031124187. The next prime is 20420031124243. The reversal of 20420031124233 is 33242113002402.

20420031124233 is a `hidden beast` number, since 2 + 0 + 4 + 200 + 31 + 1 + 2 + 423 + 3 = 666.

It is not a de Polignac number, because 20420031124233 - 2⁹ = 20420031123721 is a prime.

It is a super-2 number, since 2×20420031124233² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20420031124197 and 20420031124206.

It is not an unprimeable number, because it can be changed into a prime (20420031124243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2899443 + ... + 7017608.

It is an arithmetic number, because the mean of its divisors is an integer number (1323595873600).

Almost surely, 2^{20420031124233} is an apocalyptic number.

It is an amenable number.

20420031124233 is a deficient number, since it is larger than the sum of its proper divisors (11346269842167).

20420031124233 is a wasteful number, since it uses less digits than its factorization.

20420031124233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9934669 (or 9934666 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20420031124233 its reverse (33242113002402), we get a palindrome (53662144126635).

The spelling of 20420031124233 in words is "twenty trillion, four hundred twenty billion, thirty-one million, one hundred twenty-four thousand, two hundred thirty-three".