20310308480 has 256 divisors, whose sum is σ = 60754268160. Its totient is φ = 6307614720.

The previous prime is 20310308461. The next prime is 20310308519. The reversal of 20310308480 is 8480301302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18085199 + ... + 18086321.

It is an arithmetic number, because the mean of its divisors is an integer number (237321360).

Almost surely, 2^20310308480 is an apocalyptic number.

20310308480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20310308480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30377134080).

20310308480 is an abundant number, since it is smaller than the sum of its proper divisors (40443959680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20310308480 is a wasteful number, since it uses less digits than its factorization.

20310308480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1515 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 20310308480 its reverse (8480301302), we get a palindrome (28790609782).

The spelling of 20310308480 in words is "twenty billion, three hundred ten million, three hundred eight thousand, four hundred eighty".