42323021000 has 128 divisors (see below), whose sum is σ = 106851195360. Its totient is φ = 15598080000.

The previous prime is 42323020991. The next prime is 42323021047. The reversal of 42323021000 is 12032324.

It can be written as a sum of positive squares in 16 ways, for example, as 8644164676 + 33678856324 = 92974^2 + 183518^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42323021000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7810292 + ... + 7815708.

Almost surely, 2^42323021000 is an apocalyptic number.

42323021000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42323021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53425597680).

42323021000 is an abundant number, since it is smaller than the sum of its proper divisors (64528174360).

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

42323021000 is a wasteful number, since it uses less digits than its factorization.

42323021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052 (or 6038 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 42323021000 its reverse (12032324), we get a palindrome (42335053324).

The spelling of 42323021000 in words is "forty-two billion, three hundred twenty-three million, twenty-one thousand".