423421033140220 has 24 divisors (see below), whose sum is σ = 894639287206224. Its totient is φ = 168329343234816.

The previous prime is 423421033140187. The next prime is 423421033140223. The reversal of 423421033140220 is 22041330124324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423421033140223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64941872989 + ... + 64941879508.

It is an arithmetic number, because the mean of its divisors is an integer number (37276636966926).

Almost surely, 2^{423421033140220} is an apocalyptic number.

It is an amenable number.

423421033140220 is an abundant number, since it is smaller than the sum of its proper divisors (471218254066004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423421033140220 is a wasteful number, since it uses less digits than its factorization.

423421033140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129883752669 (or 129883752667 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 423421033140220 its reverse (22041330124324), we get a palindrome (445462363264544).

The spelling of 423421033140220 in words is "four hundred twenty-three trillion, four hundred twenty-one billion, thirty-three million, one hundred forty thousand, two hundred twenty".