121235402 has 8 divisors (see below), whose sum is σ = 181925796. Its totient is φ = 60593472.

The previous prime is 121235393. The next prime is 121235417. The reversal of 121235402 is 204532121.

It can be written as a sum of positive squares in 2 ways, for example, as 112169281 + 9066121 = 10591^2 + 3011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033 + ... + 16364.

Almost surely, 2^121235402 is an apocalyptic number.

121235402 is a deficient number, since it is larger than the sum of its proper divisors (60690394).

121235402 is a wasteful number, since it uses less digits than its factorization.

121235402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24232.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 121235402 is about 11010.6948917859. The cubic root of 121235402 is about 494.9292855485.

Adding to 121235402 its reverse (204532121), we get a palindrome (325767523).

The spelling of 121235402 in words is "one hundred twenty-one million, two hundred thirty-five thousand, four hundred two".