121463433550 has 48 divisors (see below), whose sum is σ = 236596365792. Its totient is φ = 46305072000.

The previous prime is 121463433503. The next prime is 121463433571. The reversal of 121463433550 is 55334364121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127900 + ... + 509200.

It is an arithmetic number, because the mean of its divisors is an integer number (4929090954).

Almost surely, 2^121463433550 is an apocalyptic number.

121463433550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121463433550 is a deficient number, since it is larger than the sum of its proper divisors (115132932242).

121463433550 is a wasteful number, since it uses less digits than its factorization.

121463433550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381613 (or 381608 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 121463433550 its reverse (55334364121), we get a palindrome (176797797671).

The spelling of 121463433550 in words is "one hundred twenty-one billion, four hundred sixty-three million, four hundred thirty-three thousand, five hundred fifty".