20433522139 has 2 divisors, whose sum is σ = 20433522140. Its totient is φ = 20433522138.

The previous prime is 20433522103. The next prime is 20433522143. The reversal of 20433522139 is 93122533402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20433522139 - 2⁹ = 20433521627 is a prime.

It is not a weakly prime, because it can be changed into another prime (20433522169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216761069 + 10216761070.

It is an arithmetic number, because the mean of its divisors is an integer number (10216761070).

Almost surely, 2^20433522139 is an apocalyptic number.

20433522139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20433522139 is an equidigital number, since it uses as much as digits as its factorization.

20433522139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 20433522139 in words is "twenty billion, four hundred thirty-three million, five hundred twenty-two thousand, one hundred thirty-nine".