121404032 has 16 divisors (see below), whose sum is σ = 241859850. Its totient is φ = 60701952.

The previous prime is 121404013. The next prime is 121404043. The reversal of 121404032 is 230404121.

It can be written as a sum of positive squares in only one way, i.e., 71503936 + 49900096 = 8456^2 + 7064^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 121404032.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 474107 + ... + 474362.

Almost surely, 2^121404032 is an apocalyptic number.

It is an amenable number.

121404032 is a deficient number, since it is larger than the sum of its proper divisors (120455818).

121404032 is an frugal number, since it uses more digits than its factorization.

121404032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948483 (or 948471 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 121404032 is about 11018.3497856984. The cubic root of 121404032 is about 495.1586499593.

Adding to 121404032 its reverse (230404121), we get a palindrome (351808153).

The spelling of 121404032 in words is "one hundred twenty-one million, four hundred four thousand, thirty-two".