121203652 has 24 divisors (see below), whose sum is σ = 224372736. Its totient is φ = 57169728.

The previous prime is 121203637. The next prime is 121203653. The reversal of 121203652 is 256302121.

It is not an unprimeable number, because it can be changed into a prime (121203653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2308 + ... + 15739.

It is an arithmetic number, because the mean of its divisors is an integer number (9348864).

Almost surely, 2^121203652 is an apocalyptic number.

It is an amenable number.

121203652 is a deficient number, since it is larger than the sum of its proper divisors (103169084).

121203652 is a wasteful number, since it uses less digits than its factorization.

121203652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18147 (or 18145 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 121203652 is about 11009.2530173486. The cubic root of 121203652 is about 494.8860765613.

Adding to 121203652 its reverse (256302121), we get a palindrome (377505773).

The spelling of 121203652 in words is "one hundred twenty-one million, two hundred three thousand, six hundred fifty-two".