31322123330231 has 2 divisors, whose sum is σ = 31322123330232. Its totient is φ = 31322123330230.

The previous prime is 31322123330153. The next prime is 31322123330299. The reversal of 31322123330231 is 13203332122313.

It is a strong prime.

It is an emirp because it is prime and its reverse (13203332122313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31322123330231 - 2¹⁰ = 31322123329207 is a prime.

It is a super-2 number, since 2×31322123330231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31322123330194 and 31322123330203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31322128330231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661061665115 + 15661061665116.

It is an arithmetic number, because the mean of its divisors is an integer number (15661061665116).

Almost surely, 2^{31322123330231} is an apocalyptic number.

31322123330231 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322123330231 is an equidigital number, since it uses as much as digits as its factorization.

31322123330231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 31322123330231 its reverse (13203332122313), we get a palindrome (44525455452544).

The spelling of 31322123330231 in words is "thirty-one trillion, three hundred twenty-two billion, one hundred twenty-three million, three hundred thirty thousand, two hundred thirty-one".