201131012022113 has 4 divisors (see below), whose sum is σ = 201727839951300. Its totient is φ = 200534184092928.

The previous prime is 201131012022079. The next prime is 201131012022163. The reversal of 201131012022113 is 311220210131102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128933481492544 + 72197530529569 = 11354888^2 + 8496913^2 .

It is a cyclic number.

It is not a de Polignac number, because 201131012022113 - 2¹⁰ = 201131012021089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201131012022163) 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, 298413964088 + ... + 298413964761.

It is an arithmetic number, because the mean of its divisors is an integer number (50431959987825).

Almost surely, 2^{201131012022113} is an apocalyptic number.

It is an amenable number.

201131012022113 is a deficient number, since it is larger than the sum of its proper divisors (596827929187).

201131012022113 is an equidigital number, since it uses as much as digits as its factorization.

201131012022113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596827929186.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 201131012022113 its reverse (311220210131102), we get a palindrome (512351222153215).

The spelling of 201131012022113 in words is "two hundred one trillion, one hundred thirty-one billion, twelve million, twenty-two thousand, one hundred thirteen".