201031323143 has 8 divisors (see below), whose sum is σ = 231503902080. Its totient is φ = 170997198840.

The previous prime is 201031323131. The next prime is 201031323161. The reversal of 201031323143 is 341323130102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201031323143 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 (201031323343) 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, 109612673 + ... + 109614506.

It is an arithmetic number, because the mean of its divisors is an integer number (28937987760).

Almost surely, 2^201031323143 is an apocalyptic number.

201031323143 is a deficient number, since it is larger than the sum of its proper divisors (30472578937).

201031323143 is a wasteful number, since it uses less digits than its factorization.

201031323143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219227317.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 201031323143 its reverse (341323130102), we get a palindrome (542354453245).

The spelling of 201031323143 in words is "two hundred one billion, thirty-one million, three hundred twenty-three thousand, one hundred forty-three".