121040012402 has 8 divisors (see below), whose sum is σ = 181608744576. Its totient is φ = 60503764212.

The previous prime is 121040012389. The next prime is 121040012413. The reversal of 121040012402 is 204210040121.

121040012402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8111678 + ... + 8126585.

It is an arithmetic number, because the mean of its divisors is an integer number (22701093072).

Almost surely, 2^121040012402 is an apocalyptic number.

121040012402 is a deficient number, since it is larger than the sum of its proper divisors (60568732174).

121040012402 is a wasteful number, since it uses less digits than its factorization.

121040012402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16241992.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121040012402 its reverse (204210040121), we get a palindrome (325250052523).

The spelling of 121040012402 in words is "one hundred twenty-one billion, forty million, twelve thousand, four hundred two".