123310303321 has 2 divisors, whose sum is σ = 123310303322. Its totient is φ = 123310303320.

The previous prime is 123310303309. The next prime is 123310303327. The reversal of 123310303321 is 123303013321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99489776400 + 23820526921 = 315420^2 + 154339^2 .

It is a cyclic number.

It is not a de Polignac number, because 123310303321 - 2³³ = 114720368729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123310303292 and 123310303301.

It is not a weakly prime, because it can be changed into another prime (123310303327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655151660 + 61655151661.

It is an arithmetic number, because the mean of its divisors is an integer number (61655151661).

Almost surely, 2^123310303321 is an apocalyptic number.

It is an amenable number.

123310303321 is a deficient number, since it is larger than the sum of its proper divisors (1).

123310303321 is an equidigital number, since it uses as much as digits as its factorization.

123310303321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 123310303321 its reverse (123303013321), we get a palindrome (246613316642).

Subtracting from 123310303321 its reverse (123303013321), we obtain a square (7290000 = 2700²).

The spelling of 123310303321 in words is "one hundred twenty-three billion, three hundred ten million, three hundred three thousand, three hundred twenty-one".