2131003233220 has 12 divisors (see below), whose sum is σ = 4475106789804. Its totient is φ = 852401293280.

The previous prime is 2131003233199. The next prime is 2131003233221. The reversal of 2131003233220 is 223323001312.

It can be written as a sum of positive squares in 2 ways, for example, as 1647608422464 + 483394810756 = 1283592^2 + 695266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2131003233191 and 2131003233200.

It is not an unprimeable number, because it can be changed into a prime (2131003233221) 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 3 ways as a sum of consecutive naturals, for example, 53275080811 + ... + 53275080850.

It is an arithmetic number, because the mean of its divisors is an integer number (372925565817).

Almost surely, 2^{2131003233220} is an apocalyptic number.

2131003233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131003233220 is an abundant number, since it is smaller than the sum of its proper divisors (2344103556584).

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

2131003233220 is a wasteful number, since it uses less digits than its factorization.

2131003233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106550161670 (or 106550161668 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2131003233220 its reverse (223323001312), we get a palindrome (2354326234532).

The spelling of 2131003233220 in words is "two trillion, one hundred thirty-one billion, three million, two hundred thirty-three thousand, two hundred twenty".