42134302243 has 4 divisors (see below), whose sum is σ = 45964693368. Its totient is φ = 38303911120.

The previous prime is 42134302219. The next prime is 42134302247. The reversal of 42134302243 is 34220343124.

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

It is a cyclic number.

It is not a de Polignac number, because 42134302243 - 2⁹ = 42134301731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42134302247) 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, 1915195546 + ... + 1915195567.

It is an arithmetic number, because the mean of its divisors is an integer number (11491173342).

Almost surely, 2^42134302243 is an apocalyptic number.

42134302243 is a deficient number, since it is larger than the sum of its proper divisors (3830391125).

42134302243 is a wasteful number, since it uses less digits than its factorization.

42134302243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830391124.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 42134302243 its reverse (34220343124), we get a palindrome (76354645367).

The spelling of 42134302243 in words is "forty-two billion, one hundred thirty-four million, three hundred two thousand, two hundred forty-three".