20321103010 has 64 divisors (see below), whose sum is σ = 41111491680. Its totient is φ = 7180185600.

The previous prime is 20321103007. The next prime is 20321103071. The reversal of 20321103010 is 1030112302.

It can be written as a sum of positive squares in 16 ways, for example, as 963667849 + 19357435161 = 31043^2 + 139131^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402160 + ... + 449860.

Almost surely, 2^20321103010 is an apocalyptic number.

20321103010 is an abundant number, since it is smaller than the sum of its proper divisors (20790388670).

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

20321103010 is a wasteful number, since it uses less digits than its factorization.

20321103010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47863.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20321103010 its reverse (1030112302), we get a palindrome (21351215312).

The spelling of 20321103010 in words is "twenty billion, three hundred twenty-one million, one hundred three thousand, ten".