123220332 has 24 divisors (see below), whose sum is σ = 319460400. Its totient is φ = 41073408.

The previous prime is 123220313. The next prime is 123220337. The reversal of 123220332 is 233022321.

It is a happy number.

123220332 is a `hidden beast` number, since 12 + 322 + 0 + 332 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (123220337) 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 7 ways as a sum of consecutive naturals, for example, 570357 + ... + 570572.

It is an arithmetic number, because the mean of its divisors is an integer number (13310850).

Almost surely, 2^123220332 is an apocalyptic number.

123220332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123220332 is an abundant number, since it is smaller than the sum of its proper divisors (196240068).

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

123220332 is a wasteful number, since it uses less digits than its factorization.

123220332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140942 (or 1140934 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 123220332 is about 11100.4653956490. The cubic root of 123220332 is about 497.6157581866.

Adding to 123220332 its reverse (233022321), we get a palindrome (356242653).

The spelling of 123220332 in words is "one hundred twenty-three million, two hundred twenty thousand, three hundred thirty-two".