31301221322123 has 2 divisors, whose sum is σ = 31301221322124. Its totient is φ = 31301221322122.

The previous prime is 31301221322099. The next prime is 31301221322141. The reversal of 31301221322123 is 32122312210313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31301221322123 - 2¹⁰ = 31301221321099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31301221322092 and 31301221322101.

It is not a weakly prime, because it can be changed into another prime (31301221322143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650610661061 + 15650610661062.

It is an arithmetic number, because the mean of its divisors is an integer number (15650610661062).

Almost surely, 2^{31301221322123} is an apocalyptic number.

31301221322123 is a deficient number, since it is larger than the sum of its proper divisors (1).

31301221322123 is an equidigital number, since it uses as much as digits as its factorization.

31301221322123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31301221322123 its reverse (32122312210313), we get a palindrome (63423533532436).

The spelling of 31301221322123 in words is "thirty-one trillion, three hundred one billion, two hundred twenty-one million, three hundred twenty-two thousand, one hundred twenty-three".