2031322030220 has 48 divisors (see below), whose sum is σ = 5087136918528. Its totient is φ = 666172689600.

The previous prime is 2031322030187. The next prime is 2031322030223. The reversal of 2031322030220 is 220302231302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2031322030192 and 2031322030201.

It is not an unprimeable number, because it can be changed into a prime (2031322030223) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 315419456 + ... + 315425895.

It is an arithmetic number, because the mean of its divisors is an integer number (105982019136).

Almost surely, 2^{2031322030220} is an apocalyptic number.

2031322030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031322030220 is an abundant number, since it is smaller than the sum of its proper divisors (3055814888308).

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

2031322030220 is a wasteful number, since it uses less digits than its factorization.

2031322030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630845390 (or 630845388 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 2031322030220 its reverse (220302231302), we get a palindrome (2251624261522).

The spelling of 2031322030220 in words is "two trillion, thirty-one billion, three hundred twenty-two million, thirty thousand, two hundred twenty".