123303540331 has 2 divisors, whose sum is σ = 123303540332. Its totient is φ = 123303540330.

The previous prime is 123303540319. The next prime is 123303540337. The reversal of 123303540331 is 133045303321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123303540331 - 2¹³ = 123303532139 is a prime.

It is a super-2 number, since 2×123303540331² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123303540331.

It is not a weakly prime, because it can be changed into another prime (123303540337) 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, 61651770165 + 61651770166.

It is an arithmetic number, because the mean of its divisors is an integer number (61651770166).

Almost surely, 2^123303540331 is an apocalyptic number.

123303540331 is a deficient number, since it is larger than the sum of its proper divisors (1).

123303540331 is an equidigital number, since it uses as much as digits as its factorization.

123303540331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 28.

Adding to 123303540331 its reverse (133045303321), we get a palindrome (256348843652).

The spelling of 123303540331 in words is "one hundred twenty-three billion, three hundred three million, five hundred forty thousand, three hundred thirty-one".