42021102343 has 4 divisors (see below), whose sum is σ = 45841202568. Its totient is φ = 38201002120.

The previous prime is 42021102337. The next prime is 42021102349. The reversal of 42021102343 is 34320112024.

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

It is an interprime number because it is at equal distance from previous prime (42021102337) and next prime (42021102349).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42021102343 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42021102349) 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, 1910050096 + ... + 1910050117.

It is an arithmetic number, because the mean of its divisors is an integer number (11460300642).

Almost surely, 2^42021102343 is an apocalyptic number.

42021102343 is a deficient number, since it is larger than the sum of its proper divisors (3820100225).

42021102343 is a wasteful number, since it uses less digits than its factorization.

42021102343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820100224.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42021102343 its reverse (34320112024), we get a palindrome (76341214367).

The spelling of 42021102343 in words is "forty-two billion, twenty-one million, one hundred two thousand, three hundred forty-three".