423042220100 has 36 divisors (see below), whose sum is σ = 937533577344. Its totient is φ = 165616526880.

The previous prime is 423042220087. The next prime is 423042220103. The reversal of 423042220100 is 1022240324.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (423042220103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44999792 + ... + 45009191.

Almost surely, 2^423042220100 is an apocalyptic number.

It is an amenable number.

423042220100 is an abundant number, since it is smaller than the sum of its proper divisors (514491357244).

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

423042220100 is a wasteful number, since it uses less digits than its factorization.

423042220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90009044 (or 90009037 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 423042220100 its reverse (1022240324), we get a palindrome (424064460424).

The spelling of 423042220100 in words is "four hundred twenty-three billion, forty-two million, two hundred twenty thousand, one hundred".