121113534552 has 32 divisors (see below), whose sum is σ = 302796142080. Its totient is φ = 40369537440.

The previous prime is 121113534551. The next prime is 121113534589. The reversal of 121113534552 is 255435311121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121113534551) 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, 597933 + ... + 774435.

It is an arithmetic number, because the mean of its divisors is an integer number (9462379440).

Almost surely, 2^121113534552 is an apocalyptic number.

121113534552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121113534552 is an abundant number, since it is smaller than the sum of its proper divisors (181682607528).

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

121113534552 is a wasteful number, since it uses less digits than its factorization.

121113534552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205103 (or 205099 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

Adding to 121113534552 its reverse (255435311121), we get a palindrome (376548845673).

The spelling of 121113534552 in words is "one hundred twenty-one billion, one hundred thirteen million, five hundred thirty-four thousand, five hundred fifty-two".