20122322947 has 2 divisors, whose sum is σ = 20122322948. Its totient is φ = 20122322946.

The previous prime is 20122322923. The next prime is 20122323029. The reversal of 20122322947 is 74922322102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20122322947 - 2³¹ = 17974839299 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122322917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061161473 + 10061161474.

It is an arithmetic number, because the mean of its divisors is an integer number (10061161474).

Almost surely, 2^20122322947 is an apocalyptic number.

20122322947 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122322947 is an equidigital number, since it uses as much as digits as its factorization.

20122322947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 20122322947 in words is "twenty billion, one hundred twenty-two million, three hundred twenty-two thousand, nine hundred forty-seven".