4321000042 has 4 divisors (see below), whose sum is σ = 6481500066. Its totient is φ = 2160500020.

The previous prime is 4321000031. The next prime is 4321000043. The reversal of 4321000042 is 2400001234.

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., 4299293761 + 21706281 = 65569^2 + 4659^2 .

It is not an unprimeable number, because it can be changed into a prime (4321000043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080250009 + ... + 1080250012.

Almost surely, 2^4321000042 is an apocalyptic number.

4321000042 is a deficient number, since it is larger than the sum of its proper divisors (2160500024).

4321000042 is a wasteful number, since it uses less digits than its factorization.

4321000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160500023.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4321000042 is about 65734.3140376470. The cubic root of 4321000042 is about 1628.7762330211.

Adding to 4321000042 its reverse (2400001234), we get a palindrome (6721001276).

The spelling of 4321000042 in words is "four billion, three hundred twenty-one million, forty-two", and thus it is an aban number.