123321442 has 16 divisors (see below), whose sum is σ = 186624000. Its totient is φ = 61116160.

The previous prime is 123321437. The next prime is 123321461. The reversal of 123321442 is 244123321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171159 + ... + 171877.

It is an arithmetic number, because the mean of its divisors is an integer number (11664000).

Almost surely, 2^123321442 is an apocalyptic number.

123321442 is a deficient number, since it is larger than the sum of its proper divisors (63302558).

123321442 is a wasteful number, since it uses less digits than its factorization.

123321442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its digits is 1152, while the sum is 22.

The square root of 123321442 is about 11105.0187753106. The cubic root of 123321442 is about 497.7518292739.

Adding to 123321442 its reverse (244123321), we get a palindrome (367444763).

The spelling of 123321442 in words is "one hundred twenty-three million, three hundred twenty-one thousand, four hundred forty-two".