20021322131030 has 128 divisors (see below), whose sum is σ = 41672470464000. Its totient is φ = 6849207936000.

The previous prime is 20021322131023. The next prime is 20021322131033. The reversal of 20021322131030 is 3013122312002.

It is a junction number, because it is equal to n+sod(n) for n = 20021322130993 and 20021322131011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021322131033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1806483869 + ... + 1806494951.

It is an arithmetic number, because the mean of its divisors is an integer number (325566175500).

Almost surely, 2^{20021322131030} is an apocalyptic number.

20021322131030 is an abundant number, since it is smaller than the sum of its proper divisors (21651148332970).

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

20021322131030 is a wasteful number, since it uses less digits than its factorization.

20021322131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17070.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20021322131030 its reverse (3013122312002), we get a palindrome (23034444443032).

The spelling of 20021322131030 in words is "twenty trillion, twenty-one billion, three hundred twenty-two million, one hundred thirty-one thousand, thirty".