2031322021331 has 2 divisors, whose sum is σ = 2031322021332. Its totient is φ = 2031322021330.

The previous prime is 2031322021219. The next prime is 2031322021367. The reversal of 2031322021331 is 1331202231302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031322021331 is a prime.

It is a super-2 number, since 2×2031322021331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2031322021297 and 2031322021306.

It is not a weakly prime, because it can be changed into another prime (2031322021831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015661010665 + 1015661010666.

It is an arithmetic number, because the mean of its divisors is an integer number (1015661010666).

Almost surely, 2^{2031322021331} is an apocalyptic number.

2031322021331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031322021331 is an equidigital number, since it uses as much as digits as its factorization.

2031322021331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2031322021331 its reverse (1331202231302), we get a palindrome (3362524252633).

The spelling of 2031322021331 in words is "two trillion, thirty-one billion, three hundred twenty-two million, twenty-one thousand, three hundred thirty-one".