120012421443 has 16 divisors (see below), whose sum is σ = 160624039296. Its totient is φ = 79704979200.

The previous prime is 120012421421. The next prime is 120012421447. The reversal of 120012421443 is 344124210021.

It is not a de Polignac number, because 120012421443 - 2¹³ = 120012413251 is a prime.

It is a super-2 number, since 2×120012421443² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120012421447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1059096 + ... + 1166922.

It is an arithmetic number, because the mean of its divisors is an integer number (10039002456).

Almost surely, 2^120012421443 is an apocalyptic number.

120012421443 is a deficient number, since it is larger than the sum of its proper divisors (40611617853).

120012421443 is a wasteful number, since it uses less digits than its factorization.

120012421443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109234.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 120012421443 its reverse (344124210021), we get a palindrome (464136631464).

The spelling of 120012421443 in words is "one hundred twenty billion, twelve million, four hundred twenty-one thousand, four hundred forty-three".