20310213047 has 2 divisors, whose sum is σ = 20310213048. Its totient is φ = 20310213046.

The previous prime is 20310213029. The next prime is 20310213059. The reversal of 20310213047 is 74031201302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20310213047 - 2³⁰ = 19236471223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20310213067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155106523 + 10155106524.

It is an arithmetic number, because the mean of its divisors is an integer number (10155106524).

Almost surely, 2^20310213047 is an apocalyptic number.

20310213047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310213047 is an equidigital number, since it uses as much as digits as its factorization.

20310213047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 20310213047 its reverse (74031201302), we get a palindrome (94341414349).

The spelling of 20310213047 in words is "twenty billion, three hundred ten million, two hundred thirteen thousand, forty-seven".