20311012010 has 16 divisors (see below), whose sum is σ = 37159164072. Its totient is φ = 7991217600.

The previous prime is 20311012009. The next prime is 20311012037. The reversal of 20311012010 is 1021011302.

It can be written as a sum of positive squares in 4 ways, for example, as 10089599809 + 10221412201 = 100447^2 + 101101^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20311011982 and 20311012000.

It is an unprimeable number.

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, 16647761 + ... + 16648980.

Almost surely, 2^20311012010 is an apocalyptic number.

20311012010 is a deficient number, since it is larger than the sum of its proper divisors (16848152062).

20311012010 is a wasteful number, since it uses less digits than its factorization.

20311012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33296809.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20311012010 its reverse (1021011302), we get a palindrome (21332023312).

The spelling of 20311012010 in words is "twenty billion, three hundred eleven million, twelve thousand, ten".