31322103201331 has 2 divisors, whose sum is σ = 31322103201332. Its totient is φ = 31322103201330.

The previous prime is 31322103201329. The next prime is 31322103201343. The reversal of 31322103201331 is 13310230122313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31322103201331 - 2¹ = 31322103201329 is a prime.

It is a super-2 number, since 2×31322103201331² (a number of 28 digits) contains 22 as substring.

Together with 31322103201329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 31322103201296 and 31322103201305.

It is not a weakly prime, because it can be changed into another prime (31322103201131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661051600665 + 15661051600666.

It is an arithmetic number, because the mean of its divisors is an integer number (15661051600666).

Almost surely, 2^{31322103201331} is an apocalyptic number.

31322103201331 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322103201331 is an equidigital number, since it uses as much as digits as its factorization.

31322103201331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31322103201331 its reverse (13310230122313), we get a palindrome (44632333323644).

The spelling of 31322103201331 in words is "thirty-one trillion, three hundred twenty-two billion, one hundred three million, two hundred one thousand, three hundred thirty-one".