2203131120021 has 12 divisors (see below), whose sum is σ = 3427092853548. Its totient is φ = 1355772996864.

The previous prime is 2203131120019. The next prime is 2203131120037. The reversal of 2203131120021 is 1200211313022.

2203131120021 is a `hidden beast` number, since 220 + 313 + 112 + 0 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 935737002225 + 1267394117796 = 967335^2 + 1125786^2 .

It is not a de Polignac number, because 2203131120021 - 2¹ = 2203131120019 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2203131119976 and 2203131120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203131120121) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9415090140 + ... + 9415090373.

It is an arithmetic number, because the mean of its divisors is an integer number (285591071129).

Almost surely, 2^{2203131120021} is an apocalyptic number.

It is an amenable number.

2203131120021 is a deficient number, since it is larger than the sum of its proper divisors (1223961733527).

2203131120021 is a wasteful number, since it uses less digits than its factorization.

2203131120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18830180532 (or 18830180529 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2203131120021 its reverse (1200211313022), we get a palindrome (3403342433043).

The spelling of 2203131120021 in words is "two trillion, two hundred three billion, one hundred thirty-one million, one hundred twenty thousand, twenty-one".