20302311012 has 24 divisors (see below), whose sum is σ = 47570275200. Its totient is φ = 6739120416.

The previous prime is 20302311011. The next prime is 20302311023. The reversal of 20302311012 is 21011320302.

It is a junction number, because it is equal to n+sod(n) for n = 20302310982 and 20302311000.

It is not an unprimeable number, because it can be changed into a prime (20302311011) 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 7 ways as a sum of consecutive naturals, for example, 3536587 + ... + 3542322.

It is an arithmetic number, because the mean of its divisors is an integer number (1982094800).

Almost surely, 2^20302311012 is an apocalyptic number.

It is an amenable number.

20302311012 is an abundant number, since it is smaller than the sum of its proper divisors (27267964188).

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

20302311012 is a wasteful number, since it uses less digits than its factorization.

20302311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7079155 (or 7079153 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20302311012 its reverse (21011320302), we get a palindrome (41313631314).

The spelling of 20302311012 in words is "twenty billion, three hundred two million, three hundred eleven thousand, twelve".