121443430443 has 16 divisors (see below), whose sum is σ = 170527754880. Its totient is φ = 76664738304.

The previous prime is 121443430441. The next prime is 121443430457. The reversal of 121443430443 is 344034344121.

It is not a de Polignac number, because 121443430443 - 2¹ = 121443430441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121443430441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383721 + ... + 624602.

It is an arithmetic number, because the mean of its divisors is an integer number (10657984680).

Almost surely, 2^121443430443 is an apocalyptic number.

121443430443 is a deficient number, since it is larger than the sum of its proper divisors (49084324437).

121443430443 is a wasteful number, since it uses less digits than its factorization.

121443430443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010458.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 121443430443 its reverse (344034344121), we get a palindrome (465477774564).

The spelling of 121443430443 in words is "one hundred twenty-one billion, four hundred forty-three million, four hundred thirty thousand, four hundred forty-three".