121053232443 has 32 divisors (see below), whose sum is σ = 200776084992. Its totient is φ = 63738432000.

The previous prime is 121053232441. The next prime is 121053232463. The reversal of 121053232443 is 344232350121.

It is not a de Polignac number, because 121053232443 - 2¹ = 121053232441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121053232443.

It is not an unprimeable number, because it can be changed into a prime (121053232441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8291983 + ... + 8306568.

It is an arithmetic number, because the mean of its divisors is an integer number (6274252656).

Almost surely, 2^121053232443 is an apocalyptic number.

121053232443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121053232443 is a deficient number, since it is larger than the sum of its proper divisors (79722852549).

121053232443 is a wasteful number, since it uses less digits than its factorization.

121053232443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16598595.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 121053232443 its reverse (344232350121), we get a palindrome (465285582564).

The spelling of 121053232443 in words is "one hundred twenty-one billion, fifty-three million, two hundred thirty-two thousand, four hundred forty-three".