121328042 has 16 divisors (see below), whose sum is σ = 201052800. Its totient is φ = 54450240.

The previous prime is 121328041. The next prime is 121328063. The reversal of 121328042 is 240823121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121327999 and 121328017.

It is not an unprimeable number, because it can be changed into a prime (121328041) 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, 33167 + ... + 36642.

It is an arithmetic number, because the mean of its divisors is an integer number (12565800).

Almost surely, 2^121328042 is an apocalyptic number.

121328042 is a deficient number, since it is larger than the sum of its proper divisors (79724758).

121328042 is a wasteful number, since it uses less digits than its factorization.

121328042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69901.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 121328042 is about 11014.9009074072. The cubic root of 121328042 is about 495.0553174244.

The spelling of 121328042 in words is "one hundred twenty-one million, three hundred twenty-eight thousand, forty-two".