201103131131323 has 4 divisors (see below), whose sum is σ = 204897529831968. Its totient is φ = 197308732430680.

The previous prime is 201103131131291. The next prime is 201103131131327. The reversal of 201103131131323 is 323131131301102.

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

It is a cyclic number.

It is not a de Polignac number, because 201103131131323 - 2⁵ = 201103131131291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201103131131327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897199350243 + ... + 1897199350348.

It is an arithmetic number, because the mean of its divisors is an integer number (51224382457992).

Almost surely, 2^{201103131131323} is an apocalyptic number.

201103131131323 is a deficient number, since it is larger than the sum of its proper divisors (3794398700645).

201103131131323 is an equidigital number, since it uses as much as digits as its factorization.

201103131131323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794398700644.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 201103131131323 its reverse (323131131301102), we get a palindrome (524234262432425).

The spelling of 201103131131323 in words is "two hundred one trillion, one hundred three billion, one hundred thirty-one million, one hundred thirty-one thousand, three hundred twenty-three".