20434611433 has 2 divisors, whose sum is σ = 20434611434. Its totient is φ = 20434611432.

The previous prime is 20434611401. The next prime is 20434611443. The reversal of 20434611433 is 33411643402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13511040169 + 6923571264 = 116237^2 + 83208^2 .

It is a cyclic number.

It is not a de Polignac number, because 20434611433 - 2⁵ = 20434611401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20434611395 and 20434611404.

It is not a weakly prime, because it can be changed into another prime (20434611443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10217305716 + 10217305717.

It is an arithmetic number, because the mean of its divisors is an integer number (10217305717).

Almost surely, 2^20434611433 is an apocalyptic number.

It is an amenable number.

20434611433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20434611433 is an equidigital number, since it uses as much as digits as its factorization.

20434611433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 20434611433 in words is "twenty billion, four hundred thirty-four million, six hundred eleven thousand, four hundred thirty-three".