202001321444143 has 16 divisors (see below), whose sum is σ = 217715017788576. Its totient is φ = 186312653936640.

The previous prime is 202001321444119. The next prime is 202001321444149. The reversal of 202001321444143 is 341444123100202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202001321444143 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 (202001321444149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537391383 + ... + 537767143.

It is an arithmetic number, because the mean of its divisors is an integer number (13607188611786).

Almost surely, 2^{202001321444143} is an apocalyptic number.

202001321444143 is a deficient number, since it is larger than the sum of its proper divisors (15713696344433).

202001321444143 is a wasteful number, since it uses less digits than its factorization.

202001321444143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408954.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 202001321444143 its reverse (341444123100202), we get a palindrome (543445444544345).

The spelling of 202001321444143 in words is "two hundred two trillion, one billion, three hundred twenty-one million, four hundred forty-four thousand, one hundred forty-three".