20322220939 has 2 divisors, whose sum is σ = 20322220940. Its totient is φ = 20322220938.

The previous prime is 20322220901. The next prime is 20322220949. The reversal of 20322220939 is 93902222302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20322220939 - 2¹³ = 20322212747 is a prime.

It is not a weakly prime, because it can be changed into another prime (20322220949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161110469 + 10161110470.

It is an arithmetic number, because the mean of its divisors is an integer number (10161110470).

Almost surely, 2^20322220939 is an apocalyptic number.

20322220939 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322220939 is an equidigital number, since it uses as much as digits as its factorization.

20322220939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 20322220939 in words is "twenty billion, three hundred twenty-two million, two hundred twenty thousand, nine hundred thirty-nine".