123421332 has 48 divisors (see below), whose sum is σ = 301573440. Its totient is φ = 39234048.

The previous prime is 123421327. The next prime is 123421339. The reversal of 123421332 is 233124321.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 123421299 and 123421308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123421339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26748 + ... + 31020.

It is an arithmetic number, because the mean of its divisors is an integer number (6282780).

Almost surely, 2^123421332 is an apocalyptic number.

123421332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123421332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150786720).

123421332 is an abundant number, since it is smaller than the sum of its proper divisors (178152108).

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

123421332 is a wasteful number, since it uses less digits than its factorization.

123421332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4392 (or 4390 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 123421332 is about 11109.5153809696. The cubic root of 123421332 is about 497.8861855032.

Adding to 123421332 its reverse (233124321), we get a palindrome (356545653).

It can be divided in two parts, 123421 and 332, that added together give a triangular number (123753 = T₄₉₇).

The spelling of 123421332 in words is "one hundred twenty-three million, four hundred twenty-one thousand, three hundred thirty-two".