202144430244019 has 4 divisors (see below), whose sum is σ = 202144458811680. Its totient is φ = 202144401676360.

The previous prime is 202144430243989. The next prime is 202144430244047. The reversal of 202144430244019 is 910442034441202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 202144430244019 - 2⁷ = 202144430243891 is a prime.

It is a super-2 number, since 2×202144430244019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202144430244919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5083377 + ... + 20739565.

It is an arithmetic number, because the mean of its divisors is an integer number (50536114702920).

Almost surely, 2^{202144430244019} is an apocalyptic number.

202144430244019 is a deficient number, since it is larger than the sum of its proper divisors (28567661).

202144430244019 is a wasteful number, since it uses less digits than its factorization.

202144430244019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28567660.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 202144430244019 in words is "two hundred two trillion, one hundred forty-four billion, four hundred thirty million, two hundred forty-four thousand, nineteen".