121340404 has 24 divisors (see below), whose sum is σ = 215500040. Its totient is φ = 59774976.

The previous prime is 121340393. The next prime is 121340411. The reversal of 121340404 is 404043121.

It can be written as a sum of positive squares in 4 ways, for example, as 384400 + 120956004 = 620^2 + 10998^2 .

It is a congruent number.

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, 106912 + ... + 108040.

Almost surely, 2^121340404 is an apocalyptic number.

It is an amenable number.

121340404 is a deficient number, since it is larger than the sum of its proper divisors (94159636).

121340404 is a wasteful number, since it uses less digits than its factorization.

121340404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507 (or 1505 counting only the distinct ones).

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

The square root of 121340404 is about 11015.4620420571. The cubic root of 121340404 is about 495.0721304268.

Adding to 121340404 its reverse (404043121), we get a palindrome (525383525).

The spelling of 121340404 in words is "one hundred twenty-one million, three hundred forty thousand, four hundred four".