121043552 has 24 divisors (see below), whose sum is σ = 272348496. Its totient is φ = 51875712.

The previous prime is 121043501. The next prime is 121043557. The reversal of 121043552 is 255340121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121043557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269963 + ... + 270410.

It is an arithmetic number, because the mean of its divisors is an integer number (11347854).

Almost surely, 2^121043552 is an apocalyptic number.

It is an amenable number.

121043552 is an abundant number, since it is smaller than the sum of its proper divisors (151304944).

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

121043552 is an equidigital number, since it uses as much as digits as its factorization.

121043552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540390 (or 540382 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 121043552 is about 11001.9794582611. The cubic root of 121043552 is about 494.6680793554.

Adding to 121043552 its reverse (255340121), we get a palindrome (376383673).

The spelling of 121043552 in words is "one hundred twenty-one million, forty-three thousand, five hundred fifty-two".