121049489428 has 48 divisors (see below), whose sum is σ = 242805427200. Its totient is φ = 51727140864.

The previous prime is 121049489419. The next prime is 121049489453. The reversal of 121049489428 is 824984940121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26939550 + ... + 26944042.

It is an arithmetic number, because the mean of its divisors is an integer number (5058446400).

Almost surely, 2^121049489428 is an apocalyptic number.

It is an amenable number.

121049489428 is an abundant number, since it is smaller than the sum of its proper divisors (121755937772).

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

121049489428 is a wasteful number, since it uses less digits than its factorization.

121049489428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096 (or 7094 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 121049489428 in words is "one hundred twenty-one billion, forty-nine million, four hundred eighty-nine thousand, four hundred twenty-eight".