121151424 has 28 divisors (see below), whose sum is σ = 320546984. Its totient is φ = 40383744.

The previous prime is 121151341. The next prime is 121151461. The reversal of 121151424 is 424151121.

It is a self number, because there is not a number n which added to its sum of digits gives 121151424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315307 + ... + 315690.

Almost surely, 2^121151424 is an apocalyptic number.

It is an amenable number.

121151424 is an abundant number, since it is smaller than the sum of its proper divisors (199395560).

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

121151424 is an equidigital number, since it uses as much as digits as its factorization.

121151424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631012 (or 631002 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 121151424 is about 11006.8807570537. The cubic root of 121151424 is about 494.8149823794.

The spelling of 121151424 in words is "one hundred twenty-one million, one hundred fifty-one thousand, four hundred twenty-four".