42240421203323 has 32 divisors (see below), whose sum is σ = 51316189562880. Its totient is φ = 33941918499840.

The previous prime is 42240421203317. The next prime is 42240421203347. The reversal of 42240421203323 is 32330212404224.

It is a cyclic number.

It is not a de Polignac number, because 42240421203323 - 2²² = 42240417009019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42240421203323.

It is not an unprimeable number, because it can be changed into a prime (42240421203923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81948638 + ... + 82462476.

It is an arithmetic number, because the mean of its divisors is an integer number (1603630923840).

Almost surely, 2^{42240421203323} is an apocalyptic number.

42240421203323 is a deficient number, since it is larger than the sum of its proper divisors (9075768359557).

42240421203323 is a wasteful number, since it uses less digits than its factorization.

42240421203323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516587.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 42240421203323 its reverse (32330212404224), we get a palindrome (74570633607547).

The spelling of 42240421203323 in words is "forty-two trillion, two hundred forty billion, four hundred twenty-one million, two hundred three thousand, three hundred twenty-three".