42660020323 has 4 divisors (see below), whose sum is σ = 42661813608. Its totient is φ = 42658227040.

The previous prime is 42660020317. The next prime is 42660020357. The reversal of 42660020323 is 32302006624.

42660020323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42660020323 - 2⁹ = 42660019811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42660020291 and 42660020300.

It is not an unprimeable number, because it can be changed into a prime (42660020383) 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, 860473 + ... + 908698.

It is an arithmetic number, because the mean of its divisors is an integer number (10665453402).

Almost surely, 2^42660020323 is an apocalyptic number.

42660020323 is a deficient number, since it is larger than the sum of its proper divisors (1793285).

42660020323 is a wasteful number, since it uses less digits than its factorization.

42660020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793284.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 42660020323 its reverse (32302006624), we get a palindrome (74962026947).

The spelling of 42660020323 in words is "forty-two billion, six hundred sixty million, twenty thousand, three hundred twenty-three".