42021102342 has 16 divisors (see below), whose sum is σ = 84080071152. Its totient is φ = 14000723040.

The previous prime is 42021102337. The next prime is 42021102349. The reversal of 42021102342 is 24320112024.

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 7 ways as a sum of consecutive naturals, for example, 1563333 + ... + 1589984.

It is an arithmetic number, because the mean of its divisors is an integer number (5255004447).

Almost surely, 2^42021102342 is an apocalyptic number.

42021102342 is an abundant number, since it is smaller than the sum of its proper divisors (42058968810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42021102342 is a wasteful number, since it uses less digits than its factorization.

42021102342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155543.

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

Adding to 42021102342 its reverse (24320112024), we get a palindrome (66341214366).

The spelling of 42021102342 in words is "forty-two billion, twenty-one million, one hundred two thousand, three hundred forty-two".