20424121033 has 2 divisors, whose sum is σ = 20424121034. Its totient is φ = 20424121032.

The previous prime is 20424121007. The next prime is 20424121043. The reversal of 20424121033 is 33012142402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17469437584 + 2954683449 = 132172^2 + 54357^2 .

It is a cyclic number.

It is not a de Polignac number, because 20424121033 - 2¹⁷ = 20423989961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20424120995 and 20424121013.

It is not a weakly prime, because it can be changed into another prime (20424121043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212060516 + 10212060517.

It is an arithmetic number, because the mean of its divisors is an integer number (10212060517).

Almost surely, 2^20424121033 is an apocalyptic number.

It is an amenable number.

20424121033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424121033 is an equidigital number, since it uses as much as digits as its factorization.

20424121033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20424121033 its reverse (33012142402), we get a palindrome (53436263435).

The spelling of 20424121033 in words is "twenty billion, four hundred twenty-four million, one hundred twenty-one thousand, thirty-three".