20310253147 has 2 divisors, whose sum is σ = 20310253148. Its totient is φ = 20310253146.

The previous prime is 20310253133. The next prime is 20310253177. The reversal of 20310253147 is 74135201302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20310253147 is a prime.

It is not a weakly prime, because it can be changed into another prime (20310253177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155126573 + 10155126574.

It is an arithmetic number, because the mean of its divisors is an integer number (10155126574).

Almost surely, 2^20310253147 is an apocalyptic number.

20310253147 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310253147 is an equidigital number, since it uses as much as digits as its factorization.

20310253147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 20310253147 its reverse (74135201302), we get a palindrome (94445454449).

The spelling of 20310253147 in words is "twenty billion, three hundred ten million, two hundred fifty-three thousand, one hundred forty-seven".