4121421043 has 32 divisors (see below), whose sum is σ = 4620844800. Its totient is φ = 3659354496.

The previous prime is 4121421001. The next prime is 4121421067. The reversal of 4121421043 is 3401241214.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4121421043 - 2²⁵ = 4087866611 is a prime.

It is a super-2 number, since 2×4121421043² = 33972222827366415698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121421943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4667080 + ... + 4667962.

It is an arithmetic number, because the mean of its divisors is an integer number (144401400).

Almost surely, 2^4121421043 is an apocalyptic number.

4121421043 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4121421043 is a deficient number, since it is larger than the sum of its proper divisors (499423757).

4121421043 is a wasteful number, since it uses less digits than its factorization.

4121421043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 4121421043 is about 64198.2947047661. The cubic root of 4121421043 is about 1603.3032074605.

Adding to 4121421043 its reverse (3401241214), we get a palindrome (7522662257).

The spelling of 4121421043 in words is "four billion, one hundred twenty-one million, four hundred twenty-one thousand, forty-three".