123013321 has 2 divisors, whose sum is σ = 123013322. Its totient is φ = 123013320.

The previous prime is 123013313. The next prime is 123013327. The reversal of 123013321 is 123310321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91776400 + 31236921 = 9580^2 + 5589^2 .

It is an emirp because it is prime and its reverse (123310321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123013321 - 2³ = 123013313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123013295 and 123013304.

It is not a weakly prime, because it can be changed into another prime (123013327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61506660 + 61506661.

It is an arithmetic number, because the mean of its divisors is an integer number (61506661).

Almost surely, 2^123013321 is an apocalyptic number.

It is an amenable number.

123013321 is a deficient number, since it is larger than the sum of its proper divisors (1).

123013321 is an equidigital number, since it uses as much as digits as its factorization.

123013321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 123013321 is about 11091.1370472103. The cubic root of 123013321 is about 497.3369360289.

Adding to 123013321 its reverse (123310321), we get a palindrome (246323642).

The spelling of 123013321 in words is "one hundred twenty-three million, thirteen thousand, three hundred twenty-one".