121051424 has 48 divisors (see below), whose sum is σ = 271765368. Its totient is φ = 52580352.

The previous prime is 121051397. The next prime is 121051439. The reversal of 121051424 is 424150121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 56731024 + 64320400 = 7532^2 + 8020^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121051396 and 121051405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487 + ... + 15630.

Almost surely, 2^121051424 is an apocalyptic number.

It is an amenable number.

121051424 is an abundant number, since it is smaller than the sum of its proper divisors (150713944).

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

121051424 is a wasteful number, since it uses less digits than its factorization.

121051424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17157 (or 17149 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 121051424 is about 11002.3372062485. The cubic root of 121051424 is about 494.6788026106.

The spelling of 121051424 in words is "one hundred twenty-one million, fifty-one thousand, four hundred twenty-four".