31322012013101 has 2 divisors, whose sum is σ = 31322012013102. Its totient is φ = 31322012013100.

The previous prime is 31322012013073. The next prime is 31322012013139. The reversal of 31322012013101 is 10131021022313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30397866257476 + 924145755625 = 5513426^2 + 961325^2 .

It is an emirp because it is prime and its reverse (10131021022313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31322012013101 - 2³⁴ = 31304832143917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31322012013151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661006006550 + 15661006006551.

It is an arithmetic number, because the mean of its divisors is an integer number (15661006006551).

Almost surely, 2^{31322012013101} is an apocalyptic number.

It is an amenable number.

31322012013101 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322012013101 is an equidigital number, since it uses as much as digits as its factorization.

31322012013101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31322012013101 its reverse (10131021022313), we get a palindrome (41453033035414).

The spelling of 31322012013101 in words is "thirty-one trillion, three hundred twenty-two billion, twelve million, thirteen thousand, one hundred one".