121000388 has 12 divisors (see below), whose sum is σ = 214302480. Its totient is φ = 59771112.

The previous prime is 121000387. The next prime is 121000391. The reversal of 121000388 is 883000121.

It is not an unprimeable number, because it can be changed into a prime (121000381) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 181898 + ... + 182561.

It is an arithmetic number, because the mean of its divisors is an integer number (17858540).

Almost surely, 2^121000388 is an apocalyptic number.

It is an amenable number.

121000388 is a deficient number, since it is larger than the sum of its proper divisors (93302092).

121000388 is a wasteful number, since it uses less digits than its factorization.

121000388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364546 (or 364544 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 121000388 is about 11000.0176363495. The cubic root of 121000388 is about 494.6092729970.

The spelling of 121000388 in words is "one hundred twenty-one million, three hundred eighty-eight", and thus it is an aban number.