121533532352 has 28 divisors (see below), whose sum is σ = 251653676016. Its totient is φ = 58124732160.

The previous prime is 121533532303. The next prime is 121533532381. The reversal of 121533532352 is 253235335121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41280299 + ... + 41283242.

Almost surely, 2^121533532352 is an apocalyptic number.

It is an amenable number.

121533532352 is an abundant number, since it is smaller than the sum of its proper divisors (130120143664).

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

121533532352 is an equidigital number, since it uses as much as digits as its factorization.

121533532352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82563576 (or 82563566 counting only the distinct ones).

The product of its digits is 81000, while the sum is 35.

Adding to 121533532352 its reverse (253235335121), we get a palindrome (374768867473).

The spelling of 121533532352 in words is "one hundred twenty-one billion, five hundred thirty-three million, five hundred thirty-two thousand, three hundred fifty-two".