121378038 has 32 divisors (see below), whose sum is σ = 256386816. Its totient is φ = 38230368.

The previous prime is 121378009. The next prime is 121378039. The reversal of 121378038 is 830873121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121378039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6156 + ... + 16752.

It is an arithmetic number, because the mean of its divisors is an integer number (8012088).

Almost surely, 2^121378038 is an apocalyptic number.

121378038 is an abundant number, since it is smaller than the sum of its proper divisors (135008778).

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

121378038 is a wasteful number, since it uses less digits than its factorization.

121378038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10708.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 121378038 is about 11017.1701448239. The cubic root of 121378038 is about 495.1233077156.

The spelling of 121378038 in words is "one hundred twenty-one million, three hundred seventy-eight thousand, thirty-eight".