10021243144 has 16 divisors (see below), whose sum is σ = 20497997520. Its totient is φ = 4555110480.

The previous prime is 10021243081. The next prime is 10021243151. The reversal of 10021243144 is 44134212001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56938794 + ... + 56938969.

It is an arithmetic number, because the mean of its divisors is an integer number (1281124845).

Almost surely, 2^10021243144 is an apocalyptic number.

It is an amenable number.

10021243144 is an abundant number, since it is smaller than the sum of its proper divisors (10476754376).

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

10021243144 is a wasteful number, since it uses less digits than its factorization.

10021243144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113877780 (or 113877776 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10021243144 its reverse (44134212001), we get a palindrome (54155455145).

The spelling of 10021243144 in words is "ten billion, twenty-one million, two hundred forty-three thousand, one hundred forty-four".