10021003442 has 4 divisors (see below), whose sum is σ = 15031505166. Its totient is φ = 5010501720.

The previous prime is 10021003439. The next prime is 10021003451. The reversal of 10021003442 is 24430012001.

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., 9627338161 + 393665281 = 98119^2 + 19841^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10021003442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505250859 + ... + 2505250862.

Almost surely, 2^10021003442 is an apocalyptic number.

10021003442 is a deficient number, since it is larger than the sum of its proper divisors (5010501724).

10021003442 is an equidigital number, since it uses as much as digits as its factorization.

10021003442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010501723.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 10021003442 its reverse (24430012001), we get a palindrome (34451015443).

The spelling of 10021003442 in words is "ten billion, twenty-one million, three thousand, four hundred forty-two".