123021332 has 24 divisors (see below), whose sum is σ = 246461376. Its totient is φ = 52633728.

The previous prime is 123021331. The next prime is 123021359. The reversal of 123021332 is 233120321.

It is a self number, because there is not a number n which added to its sum of digits gives 123021332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14588 + ... + 21420.

It is an arithmetic number, because the mean of its divisors is an integer number (10269224).

Almost surely, 2^123021332 is an apocalyptic number.

It is an amenable number.

123021332 is an abundant number, since it is smaller than the sum of its proper divisors (123440044).

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

123021332 is a wasteful number, since it uses less digits than its factorization.

123021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7487 (or 7485 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123021332 is about 11091.4981855473. The cubic root of 123021332 is about 497.3477318236.

Adding to 123021332 its reverse (233120321), we get a palindrome (356141653).

The spelling of 123021332 in words is "one hundred twenty-three million, twenty-one thousand, three hundred thirty-two".