201011320143 has 16 divisors (see below), whose sum is σ = 297833536000. Its totient is φ = 133990002360.

The previous prime is 201011320051. The next prime is 201011320259. The reversal of 201011320143 is 341023110102.

201011320143 is a `hidden beast` number, since 201 + 0 + 1 + 1 + 320 + 143 = 666.

It is not a de Polignac number, because 201011320143 - 2²⁵ = 200977765711 is a prime.

It is a super-4 number, since 4×201011320143⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011320343) 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, 275623 + ... + 691368.

It is an arithmetic number, because the mean of its divisors is an integer number (18614596000).

Almost surely, 2^201011320143 is an apocalyptic number.

201011320143 is a deficient number, since it is larger than the sum of its proper divisors (96822215857).

201011320143 is an equidigital number, since it uses as much as digits as its factorization.

201011320143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974699 (or 974693 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201011320143 its reverse (341023110102), we get a palindrome (542034430245).

The spelling of 201011320143 in words is "two hundred one billion, eleven million, three hundred twenty thousand, one hundred forty-three".