42134202321 has 4 divisors (see below), whose sum is σ = 56178936432. Its totient is φ = 28089468212.

The previous prime is 42134202317. The next prime is 42134202329. The reversal of 42134202321 is 12320243124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42134202321 - 2² = 42134202317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42134202291 and 42134202300.

It is not an unprimeable number, because it can be changed into a prime (42134202329) 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, 7022367051 + ... + 7022367056.

It is an arithmetic number, because the mean of its divisors is an integer number (14044734108).

Almost surely, 2^42134202321 is an apocalyptic number.

It is an amenable number.

42134202321 is a deficient number, since it is larger than the sum of its proper divisors (14044734111).

42134202321 is a wasteful number, since it uses less digits than its factorization.

42134202321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14044734110.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42134202321 its reverse (12320243124), we get a palindrome (54454445445).

The spelling of 42134202321 in words is "forty-two billion, one hundred thirty-four million, two hundred two thousand, three hundred twenty-one".