121243052 has 18 divisors (see below), whose sum is σ = 246816612. Its totient is φ = 51961224.

The previous prime is 121243049. The next prime is 121243063. The reversal of 121243052 is 250342121.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 309098 + ... + 309489.

It is an arithmetic number, because the mean of its divisors is an integer number (13712034).

Almost surely, 2^121243052 is an apocalyptic number.

It is an amenable number.

121243052 is an abundant number, since it is smaller than the sum of its proper divisors (125573560).

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

121243052 is a wasteful number, since it uses less digits than its factorization.

121243052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618605 (or 618596 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 121243052 is about 11011.0422758248. The cubic root of 121243052 is about 494.9396954050.

Adding to 121243052 its reverse (250342121), we get a palindrome (371585173).

The spelling of 121243052 in words is "one hundred twenty-one million, two hundred forty-three thousand, fifty-two".