121355532032 has 36 divisors (see below), whose sum is σ = 276842311536. Its totient is φ = 52009512960.

The previous prime is 121355532029. The next prime is 121355532037. The reversal of 121355532032 is 230235553121.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 121355532032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121355532037) 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, 33858569 + ... + 33862152.

Almost surely, 2^121355532032 is an apocalyptic number.

It is an amenable number.

121355532032 is an abundant number, since it is smaller than the sum of its proper divisors (155486779504).

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

121355532032 is an frugal number, since it uses more digits than its factorization.

121355532032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67720744 (or 67720730 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 121355532032 in words is "one hundred twenty-one billion, three hundred fifty-five million, five hundred thirty-two thousand, thirty-two".