102144204021 has 8 divisors (see below), whose sum is σ = 136195337664. Its totient is φ = 68094603200.

The previous prime is 102144203971. The next prime is 102144204059. The reversal of 102144204021 is 120402441201.

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 102144204021 - 2¹⁰ = 102144202997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102144204121) 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, 217476 + ... + 501581.

It is an arithmetic number, because the mean of its divisors is an integer number (17024417208).

Almost surely, 2^102144204021 is an apocalyptic number.

It is an amenable number.

102144204021 is a deficient number, since it is larger than the sum of its proper divisors (34051133643).

102144204021 is an equidigital number, since it uses as much as digits as its factorization.

102144204021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766411.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 102144204021 its reverse (120402441201), we get a palindrome (222546645222).

The spelling of 102144204021 in words is "one hundred two billion, one hundred forty-four million, two hundred four thousand, twenty-one".