31123013333341 has 2 divisors, whose sum is σ = 31123013333342. Its totient is φ = 31123013333340.

The previous prime is 31123013333239. The next prime is 31123013333359. The reversal of 31123013333341 is 14333331032113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30775632761241 + 347380572100 = 5547579^2 + 589390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31123013333341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31123013334341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15561506666670 + 15561506666671.

It is an arithmetic number, because the mean of its divisors is an integer number (15561506666671).

Almost surely, 2^{31123013333341} is an apocalyptic number.

It is an amenable number.

31123013333341 is a deficient number, since it is larger than the sum of its proper divisors (1).

31123013333341 is an equidigital number, since it uses as much as digits as its factorization.

31123013333341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 31123013333341 its reverse (14333331032113), we get a palindrome (45456344365454).

The spelling of 31123013333341 in words is "thirty-one trillion, one hundred twenty-three billion, thirteen million, three hundred thirty-three thousand, three hundred forty-one".