121302133231132 has 24 divisors (see below), whose sum is σ = 242604986906240. Its totient is φ = 51986474146800.

The previous prime is 121302133231121. The next prime is 121302133231177. The reversal of 121302133231132 is 231132331203121.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 121302133231132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3429919 + ... + 15948937.

Almost surely, 2^{121302133231132} is an apocalyptic number.

It is an amenable number.

121302133231132 is an abundant number, since it is smaller than the sum of its proper divisors (121302853675108).

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

121302133231132 is a wasteful number, since it uses less digits than its factorization.

121302133231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12865081 (or 12865079 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 121302133231132 its reverse (231132331203121), we get a palindrome (352434464434253).

The spelling of 121302133231132 in words is "one hundred twenty-one trillion, three hundred two billion, one hundred thirty-three million, two hundred thirty-one thousand, one hundred thirty-two".