121042524 has 24 divisors (see below), whose sum is σ = 282819600. Its totient is φ = 40292224.

The previous prime is 121042511. The next prime is 121042543. The reversal of 121042524 is 425240121.

It is a self number, because there is not a number n which added to its sum of digits gives 121042524.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2752 + ... + 15800.

It is an arithmetic number, because the mean of its divisors is an integer number (11784150).

Almost surely, 2^121042524 is an apocalyptic number.

It is an amenable number.

121042524 is an abundant number, since it is smaller than the sum of its proper divisors (161777076).

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

121042524 is a wasteful number, since it uses less digits than its factorization.

121042524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13829 (or 13827 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 121042524 is about 11001.9327392963. The cubic root of 121042524 is about 494.6666789773. Note that the first 4 decimals are identical.

Adding to 121042524 its reverse (425240121), we get a palindrome (546282645).

It can be divided in two parts, 1210 and 42524, that added together give a palindrome (43734).

The spelling of 121042524 in words is "one hundred twenty-one million, forty-two thousand, five hundred twenty-four".