121000038 has 16 divisors (see below), whose sum is σ = 242135040. Its totient is φ = 40310856.

The previous prime is 121000003. The next prime is 121000049. The reversal of 121000038 is 830000121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120999990 and 121000026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8931 + ... + 17937.

It is an arithmetic number, because the mean of its divisors is an integer number (15133440).

Almost surely, 2^121000038 is an apocalyptic number.

121000038 is an abundant number, since it is smaller than the sum of its proper divisors (121135002).

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

121000038 is a wasteful number, since it uses less digits than its factorization.

121000038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11251.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 121000038 is about 11000.0017272726. The cubic root of 121000038 is about 494.6087961021.

Adding to 121000038 its reverse (830000121), we get a palindrome (951000159).

The spelling of 121000038 in words is "one hundred twenty-one million, thirty-eight", and thus it is an aban number.