42010221243 has 4 divisors (see below), whose sum is σ = 56013628328. Its totient is φ = 28006814160.

The previous prime is 42010221233. The next prime is 42010221353. The reversal of 42010221243 is 34212201024.

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

It is not a de Polignac number, because 42010221243 - 2²⁴ = 41993444027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42010221203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7001703538 + ... + 7001703543.

It is an arithmetic number, because the mean of its divisors is an integer number (14003407082).

Almost surely, 2^42010221243 is an apocalyptic number.

42010221243 is a deficient number, since it is larger than the sum of its proper divisors (14003407085).

42010221243 is a wasteful number, since it uses less digits than its factorization.

42010221243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14003407084.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 42010221243 its reverse (34212201024), we get a palindrome (76222422267).

The spelling of 42010221243 in words is "forty-two billion, ten million, two hundred twenty-one thousand, two hundred forty-three".