121632611360432 has 20 divisors (see below), whose sum is σ = 237025399455600. Its totient is φ = 60464766339648.

The previous prime is 121632611360417. The next prime is 121632611360453. The reversal of 121632611360432 is 234063116236121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121632611360432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21971205932 + ... + 21971211467.

It is an arithmetic number, because the mean of its divisors is an integer number (11851269972780).

Almost surely, 2^{121632611360432} is an apocalyptic number.

It is an amenable number.

121632611360432 is a deficient number, since it is larger than the sum of its proper divisors (115392788095168).

121632611360432 is a wasteful number, since it uses less digits than its factorization.

121632611360432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43942417580 (or 43942417574 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

Adding to 121632611360432 its reverse (234063116236121), we get a palindrome (355695727596553).

The spelling of 121632611360432 in words is "one hundred twenty-one trillion, six hundred thirty-two billion, six hundred eleven million, three hundred sixty thousand, four hundred thirty-two".