42402200220423 has 24 divisors (see below), whose sum is σ = 63366981132000. Its totient is φ = 27290194795584.

The previous prime is 42402200220409. The next prime is 42402200220451. The reversal of 42402200220423 is 32402200220424.

It is not a de Polignac number, because 42402200220423 - 2⁴ = 42402200220407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42402270220423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7202140 + ... + 11690817.

It is an arithmetic number, because the mean of its divisors is an integer number (2640290880500).

Almost surely, 2^{42402200220423} is an apocalyptic number.

42402200220423 is a deficient number, since it is larger than the sum of its proper divisors (20964780911577).

42402200220423 is a wasteful number, since it uses less digits than its factorization.

42402200220423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18901591 (or 18901588 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 42402200220423 its reverse (32402200220424), we get a palindrome (74804400440847).

Subtracting from 42402200220423 its reverse (32402200220424), we obtain a palindrome (9999999999999).

The spelling of 42402200220423 in words is "forty-two trillion, four hundred two billion, two hundred million, two hundred twenty thousand, four hundred twenty-three".