123013030321 has 4 divisors (see below), whose sum is σ = 125873798512. Its totient is φ = 120152262132.

The previous prime is 123013030303. The next prime is 123013030337. The reversal of 123013030321 is 123030310321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123013030321 - 2¹⁵ = 123012997553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123013030351) 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 in 3 ways as a sum of consecutive naturals, for example, 1430384031 + ... + 1430384116.

It is an arithmetic number, because the mean of its divisors is an integer number (31468449628).

Almost surely, 2^123013030321 is an apocalyptic number.

It is an amenable number.

123013030321 is a deficient number, since it is larger than the sum of its proper divisors (2860768191).

123013030321 is an equidigital number, since it uses as much as digits as its factorization.

123013030321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860768190.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 123013030321 its reverse (123030310321), we get a palindrome (246043340642).

The spelling of 123013030321 in words is "one hundred twenty-three billion, thirteen million, thirty thousand, three hundred twenty-one".