121870104 has 32 divisors (see below), whose sum is σ = 320712000. Its totient is φ = 38485152.

The previous prime is 121870079. The next prime is 121870109. The reversal of 121870104 is 401078121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121870109) 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 7 ways as a sum of consecutive naturals, for example, 133174 + ... + 134085.

It is an arithmetic number, because the mean of its divisors is an integer number (10022250).

Almost surely, 2^121870104 is an apocalyptic number.

It is an amenable number.

121870104 is an abundant number, since it is smaller than the sum of its proper divisors (198841896).

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

121870104 is a wasteful number, since it uses less digits than its factorization.

121870104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267287 (or 267283 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 121870104 is about 11039.4793355484. The cubic root of 121870104 is about 495.7914814631.

The spelling of 121870104 in words is "one hundred twenty-one million, eight hundred seventy thousand, one hundred four".