121403404 has 6 divisors (see below), whose sum is σ = 212455964. Its totient is φ = 60701700.

The previous prime is 121403383. The next prime is 121403411. The reversal of 121403404 is 404304121.

It is a zygodrome in base 2.

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, 15175422 + ... + 15175429.

Almost surely, 2^121403404 is an apocalyptic number.

It is an amenable number.

121403404 is a deficient number, since it is larger than the sum of its proper divisors (91052560).

121403404 is a wasteful number, since it uses less digits than its factorization.

121403404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30350855 (or 30350853 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 121403404 is about 11018.3212877462. The cubic root of 121403404 is about 495.1577961706.

Adding to 121403404 its reverse (404304121), we get a palindrome (525707525).

It can be divided in two parts, 121 and 403404, that multiplied together give a palindrome (48811884).

The spelling of 121403404 in words is "one hundred twenty-one million, four hundred three thousand, four hundred four".