2021044434142 has 4 divisors (see below), whose sum is σ = 3031566651216. Its totient is φ = 1010522217070.

The previous prime is 2021044434133. The next prime is 2021044434173. The reversal of 2021044434142 is 2414344401202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505261108534 + ... + 505261108537.

It is an arithmetic number, because the mean of its divisors is an integer number (757891662804).

Almost surely, 2^{2021044434142} is an apocalyptic number.

2021044434142 is a deficient number, since it is larger than the sum of its proper divisors (1010522217074).

2021044434142 is a wasteful number, since it uses less digits than its factorization.

2021044434142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010522217073.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 2021044434142 its reverse (2414344401202), we get a palindrome (4435388835344).

The spelling of 2021044434142 in words is "two trillion, twenty-one billion, forty-four million, four hundred thirty-four thousand, one hundred forty-two".