123213304031 has 2 divisors, whose sum is σ = 123213304032. Its totient is φ = 123213304030.

The previous prime is 123213303991. The next prime is 123213304057. The reversal of 123213304031 is 130403312321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123213304031 - 2¹⁴ = 123213287647 is a prime.

It is a super-2 number, since 2×123213304031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123213303988 and 123213304006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123213304831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61606652015 + 61606652016.

It is an arithmetic number, because the mean of its divisors is an integer number (61606652016).

Almost surely, 2^123213304031 is an apocalyptic number.

123213304031 is a deficient number, since it is larger than the sum of its proper divisors (1).

123213304031 is an equidigital number, since it uses as much as digits as its factorization.

123213304031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123213304031 its reverse (130403312321), we get a palindrome (253616616352).

The spelling of 123213304031 in words is "one hundred twenty-three billion, two hundred thirteen million, three hundred four thousand, thirty-one".