121303404 has 36 divisors (see below), whose sum is σ = 317204160. Its totient is φ = 39039840.

The previous prime is 121303393. The next prime is 121303411. The reversal of 121303404 is 404303121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57052 + ... + 59139.

Almost surely, 2^121303404 is an apocalyptic number.

It is an amenable number.

121303404 is an abundant number, since it is smaller than the sum of its proper divisors (195900756).

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

121303404 is a wasteful number, since it uses less digits than its factorization.

121303404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116230 (or 116225 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 121303404 is about 11013.7824565405. The cubic root of 121303404 is about 495.0218049776.

Adding to 121303404 its reverse (404303121), we get a palindrome (525606525).

The spelling of 121303404 in words is "one hundred twenty-one million, three hundred three thousand, four hundred four".