123312321151 has 2 divisors, whose sum is σ = 123312321152. Its totient is φ = 123312321150.

The previous prime is 123312321137. The next prime is 123312321229. The reversal of 123312321151 is 151123213321.

It is a weak prime.

It is an emirp because it is prime and its reverse (151123213321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123312321151 - 2⁹ = 123312320639 is a prime.

It is a super-3 number, since 3×123312321151³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123312321131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61656160575 + 61656160576.

It is an arithmetic number, because the mean of its divisors is an integer number (61656160576).

Almost surely, 2^123312321151 is an apocalyptic number.

123312321151 is a deficient number, since it is larger than the sum of its proper divisors (1).

123312321151 is an equidigital number, since it uses as much as digits as its factorization.

123312321151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

Adding to 123312321151 its reverse (151123213321), we get a palindrome (274435534472).

The spelling of 123312321151 in words is "one hundred twenty-three billion, three hundred twelve million, three hundred twenty-one thousand, one hundred fifty-one".