21442034130 has 64 divisors (see below), whose sum is σ = 56172894336. Its totient is φ = 5194944000.

The previous prime is 21442034129. The next prime is 21442034149. The reversal of 21442034130 is 3143024412.

It is a self number, because there is not a number n which added to its sum of digits gives 21442034130.

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, 555870 + ... + 593190.

It is an arithmetic number, because the mean of its divisors is an integer number (877701474).

Almost surely, 2^21442034130 is an apocalyptic number.

21442034130 is an abundant number, since it is smaller than the sum of its proper divisors (34730860206).

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

21442034130 is a wasteful number, since it uses less digits than its factorization.

21442034130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39083.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21442034130 its reverse (3143024412), we get a palindrome (24585058542).

The spelling of 21442034130 in words is "twenty-one billion, four hundred forty-two million, thirty-four thousand, one hundred thirty".