21000141143144 has 32 divisors (see below), whose sum is σ = 40335885004800. Its totient is φ = 10246615888320.

The previous prime is 21000141143123. The next prime is 21000141143203. The reversal of 21000141143144 is 44134114100012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169359584 + ... + 169483535.

It is an arithmetic number, because the mean of its divisors is an integer number (1260496406400).

Almost surely, 2^{21000141143144} is an apocalyptic number.

It is an amenable number.

21000141143144 is a deficient number, since it is larger than the sum of its proper divisors (19335743861656).

21000141143144 is a wasteful number, since it uses less digits than its factorization.

21000141143144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338843313 (or 338843309 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21000141143144 its reverse (44134114100012), we get a palindrome (65134255243156).

The spelling of 21000141143144 in words is "twenty-one trillion, one hundred forty-one million, one hundred forty-three thousand, one hundred forty-four".