4321129042 has 4 divisors (see below), whose sum is σ = 6481693566. Its totient is φ = 2160564520.

The previous prime is 4321129019. The next prime is 4321129049. The reversal of 4321129042 is 2409211234.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4236838281 + 84290761 = 65091^2 + 9181^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4321129042.

It is not an unprimeable number, because it can be changed into a prime (4321129049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080282259 + ... + 1080282262.

Almost surely, 2^4321129042 is an apocalyptic number.

4321129042 is a deficient number, since it is larger than the sum of its proper divisors (2160564524).

4321129042 is a wasteful number, since it uses less digits than its factorization.

4321129042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160564523.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4321129042 is about 65735.2952530070. The cubic root of 4321129042 is about 1628.7924414637.

The spelling of 4321129042 in words is "four billion, three hundred twenty-one million, one hundred twenty-nine thousand, forty-two".