20150334473 has 2 divisors, whose sum is σ = 20150334474. Its totient is φ = 20150334472.

The previous prime is 20150334443. The next prime is 20150334539. The reversal of 20150334473 is 37443305102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10882036489 + 9268297984 = 104317^2 + 96272^2 .

It is a cyclic number.

It is not a de Polignac number, because 20150334473 - 2³⁰ = 19076592649 is a prime.

It is not a weakly prime, because it can be changed into another prime (20150334443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075167236 + 10075167237.

It is an arithmetic number, because the mean of its divisors is an integer number (10075167237).

Almost surely, 2^20150334473 is an apocalyptic number.

It is an amenable number.

20150334473 is a deficient number, since it is larger than the sum of its proper divisors (1).

20150334473 is an equidigital number, since it uses as much as digits as its factorization.

20150334473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 32.

Adding to 20150334473 its reverse (37443305102), we get a palindrome (57593639575).

The spelling of 20150334473 in words is "twenty billion, one hundred fifty million, three hundred thirty-four thousand, four hundred seventy-three".