21142202303024 has 160 divisors (see below), whose sum is σ = 48192889171968. Its totient is φ = 8884858752000.

The previous prime is 21142202303021. The next prime is 21142202303039. The reversal of 21142202303024 is 42030320224112.

It is a junction number, because it is equal to n+sod(n) for n = 21142202302984 and 21142202303002.

It is not an unprimeable number, because it can be changed into a prime (21142202303021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102923042 + ... + 103128254.

Almost surely, 2^{21142202303024} 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 21142202303024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24096444585984).

21142202303024 is an abundant number, since it is smaller than the sum of its proper divisors (27050686868944).

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

21142202303024 is a wasteful number, since it uses less digits than its factorization.

21142202303024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206107 (or 206101 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21142202303024 its reverse (42030320224112), we get a palindrome (63172522527136).

The spelling of 21142202303024 in words is "twenty-one trillion, one hundred forty-two billion, two hundred two million, three hundred three thousand, twenty-four".