21142114501 has 8 divisors (see below), whose sum is σ = 21491902208. Its totient is φ = 20792430000.

The previous prime is 21142114429. The next prime is 21142114519. The reversal of 21142114501 is 10541124112.

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 21142114501 - 2⁷ = 21142114373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142114541) 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, 463216 + ... + 506806.

It is an arithmetic number, because the mean of its divisors is an integer number (2686487776).

Almost surely, 2^21142114501 is an apocalyptic number.

It is an amenable number.

21142114501 is a deficient number, since it is larger than the sum of its proper divisors (349787707).

21142114501 is an equidigital number, since it uses as much as digits as its factorization.

21142114501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51603.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 21142114501 its reverse (10541124112), we get a palindrome (31683238613).

The spelling of 21142114501 in words is "twenty-one billion, one hundred forty-two million, one hundred fourteen thousand, five hundred one".