2144320254021 has 8 divisors (see below), whose sum is σ = 3119011278624. Its totient is φ = 1299588032720.

The previous prime is 2144320253953. The next prime is 2144320254053. The reversal of 2144320254021 is 1204520234412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2144320254021 - 2²³ = 2144311865413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2144320254021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144320254121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32489700786 + ... + 32489700851.

It is an arithmetic number, because the mean of its divisors is an integer number (389876409828).

Almost surely, 2^{2144320254021} is an apocalyptic number.

It is an amenable number.

2144320254021 is a deficient number, since it is larger than the sum of its proper divisors (974691024603).

2144320254021 is a wasteful number, since it uses less digits than its factorization.

2144320254021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64979401651.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 2144320254021 its reverse (1204520234412), we get a palindrome (3348840488433).

The spelling of 2144320254021 in words is "two trillion, one hundred forty-four billion, three hundred twenty million, two hundred fifty-four thousand, twenty-one".