201321101043 has 12 divisors (see below), whose sum is σ = 298656528768. Its totient is φ = 130586659920.

The previous prime is 201321101041. The next prime is 201321101063. The reversal of 201321101043 is 340101123102.

201321101043 is a `hidden beast` number, since 201 + 321 + 101 + 0 + 43 = 666.

It is not a de Polignac number, because 201321101043 - 2¹ = 201321101041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201321101041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302283603 + ... + 302284268.

It is an arithmetic number, because the mean of its divisors is an integer number (24888044064).

Almost surely, 2^201321101043 is an apocalyptic number.

201321101043 is a deficient number, since it is larger than the sum of its proper divisors (97335427725).

201321101043 is a wasteful number, since it uses less digits than its factorization.

201321101043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604567914 (or 604567911 counting only the distinct ones).

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

Adding to 201321101043 its reverse (340101123102), we get a palindrome (541422224145).

The spelling of 201321101043 in words is "two hundred one billion, three hundred twenty-one million, one hundred one thousand, forty-three".