120421054124 has 24 divisors (see below), whose sum is σ = 241269923328. Its totient is φ = 51517348560.

The previous prime is 120421054063. The next prime is 120421054129. The reversal of 120421054124 is 421450124021.

It is a junction number, because it is equal to n+sod(n) for n = 120421054093 and 120421054102.

It is not an unprimeable number, because it can be changed into a prime (120421054129) 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 7 ways as a sum of consecutive naturals, for example, 3803732 + ... + 3835259.

It is an arithmetic number, because the mean of its divisors is an integer number (10052913472).

Almost surely, 2^120421054124 is an apocalyptic number.

120421054124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

120421054124 is an abundant number, since it is smaller than the sum of its proper divisors (120848869204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120421054124 is a wasteful number, since it uses less digits than its factorization.

120421054124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639565 (or 7639563 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 120421054124 its reverse (421450124021), we get a palindrome (541871178145).

The spelling of 120421054124 in words is "one hundred twenty billion, four hundred twenty-one million, fifty-four thousand, one hundred twenty-four".