43023130042 has 4 divisors (see below), whose sum is σ = 64534695066. Its totient is φ = 21511565020.

The previous prime is 43023130037. The next prime is 43023130067. The reversal of 43023130042 is 24003132034.

It is a happy number.

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., 28116917761 + 14906212281 = 167681^2 + 122091^2 .

It is a super-2 number, since 2×43023130042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43023129995 and 43023130022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10755782509 + ... + 10755782512.

Almost surely, 2^43023130042 is an apocalyptic number.

43023130042 is a deficient number, since it is larger than the sum of its proper divisors (21511565024).

43023130042 is a wasteful number, since it uses less digits than its factorization.

43023130042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21511565023.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 43023130042 its reverse (24003132034), we get a palindrome (67026262076).

The spelling of 43023130042 in words is "forty-three billion, twenty-three million, one hundred thirty thousand, forty-two".