20310308481 has 16 divisors (see below), whose sum is σ = 27662379264. Its totient is φ = 13249342464.

The previous prime is 20310308461. The next prime is 20310308519. The reversal of 20310308481 is 18480301302.

It is not a de Polignac number, because 20310308481 - 2⁷ = 20310308353 is a prime.

It is a super-4 number, since 4×20310308481⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20310308461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 827275 + ... + 851471.

It is an arithmetic number, because the mean of its divisors is an integer number (1728898704).

Almost surely, 2^20310308481 is an apocalyptic number.

It is an amenable number.

20310308481 is a deficient number, since it is larger than the sum of its proper divisors (7352070783).

20310308481 is a wasteful number, since it uses less digits than its factorization.

20310308481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30200.

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 20310308481 its reverse (18480301302), we get a palindrome (38790609783).

The spelling of 20310308481 in words is "twenty billion, three hundred ten million, three hundred eight thousand, four hundred eighty-one".