10021433042 has 4 divisors (see below), whose sum is σ = 15032149566. Its totient is φ = 5010716520.

The previous prime is 10021433041. The next prime is 10021433047. The reversal of 10021433042 is 24033412001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24033412001 = 1277 ⋅18820213.

It can be written as a sum of positive squares in only one way, i.e., 9755710441 + 265722601 = 98771^2 + 16301^2 .

It is not an unprimeable number, because it can be changed into a prime (10021433041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505358259 + ... + 2505358262.

Almost surely, 2^10021433042 is an apocalyptic number.

10021433042 is a deficient number, since it is larger than the sum of its proper divisors (5010716524).

10021433042 is an equidigital number, since it uses as much as digits as its factorization.

10021433042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010716523.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10021433042 its reverse (24033412001), we get a palindrome (34054845043).

The spelling of 10021433042 in words is "ten billion, twenty-one million, four hundred thirty-three thousand, forty-two".