42243031100 has 72 divisors (see below), whose sum is σ = 92386305648. Its totient is φ = 16765056000.

The previous prime is 42243031097. The next prime is 42243031169. The reversal of 42243031100 is 113034224.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11424452 + ... + 11428148.

It is an arithmetic number, because the mean of its divisors is an integer number (1283143134).

Almost surely, 2^42243031100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42243031100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46193152824).

42243031100 is an abundant number, since it is smaller than the sum of its proper divisors (50143274548).

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

42243031100 is a wasteful number, since it uses less digits than its factorization.

42243031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575 (or 4568 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 42243031100 its reverse (113034224), we get a palindrome (42356065324).

The spelling of 42243031100 in words is "forty-two billion, two hundred forty-three million, thirty-one thousand, one hundred".