31322132113213 has 2 divisors, whose sum is σ = 31322132113214. Its totient is φ = 31322132113212.

The previous prime is 31322132113187. The next prime is 31322132113241. The reversal of 31322132113213 is 31231123122313.

It is an a-pointer prime, because the next prime (31322132113241) can be obtained adding 31322132113213 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31226045752729 + 96086360484 = 5588027^2 + 309978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31322132113213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31322132113273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661066056606 + 15661066056607.

It is an arithmetic number, because the mean of its divisors is an integer number (15661066056607).

Almost surely, 2^{31322132113213} is an apocalyptic number.

It is an amenable number.

31322132113213 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322132113213 is an equidigital number, since it uses as much as digits as its factorization.

31322132113213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

Adding to 31322132113213 its reverse (31231123122313), we get a palindrome (62553255235526).

The spelling of 31322132113213 in words is "thirty-one trillion, three hundred twenty-two billion, one hundred thirty-two million, one hundred thirteen thousand, two hundred thirteen".