123213010331 has 2 divisors, whose sum is σ = 123213010332. Its totient is φ = 123213010330.

The previous prime is 123213010303. The next prime is 123213010373. The reversal of 123213010331 is 133010312321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123213010331 - 2⁶ = 123213010267 is a prime.

It is a super-2 number, since 2×123213010331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123213010231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61606505165 + 61606505166.

It is an arithmetic number, because the mean of its divisors is an integer number (61606505166).

Almost surely, 2^123213010331 is an apocalyptic number.

123213010331 is a deficient number, since it is larger than the sum of its proper divisors (1).

123213010331 is an equidigital number, since it uses as much as digits as its factorization.

123213010331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123213010331 its reverse (133010312321), we get a palindrome (256223322652).

The spelling of 123213010331 in words is "one hundred twenty-three billion, two hundred thirteen million, ten thousand, three hundred thirty-one".