123420321304 has 32 divisors (see below), whose sum is σ = 264529393920. Its totient is φ = 52882968096.

The previous prime is 123420321223. The next prime is 123420321307. The reversal of 123420321304 is 403123024321.

123420321304 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123420321307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24807 + ... + 497449.

It is an arithmetic number, because the mean of its divisors is an integer number (8266543560).

Almost surely, 2^123420321304 is an apocalyptic number.

123420321304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123420321304 is an abundant number, since it is smaller than the sum of its proper divisors (141109072616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123420321304 is a wasteful number, since it uses less digits than its factorization.

123420321304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477319 (or 477315 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 123420321304 its reverse (403123024321), we get a palindrome (526543345625).

The spelling of 123420321304 in words is "one hundred twenty-three billion, four hundred twenty million, three hundred twenty-one thousand, three hundred four".