201131003320123 has 4 divisors (see below), whose sum is σ = 212962238809560. Its totient is φ = 189299767830688.

The previous prime is 201131003320043. The next prime is 201131003320127. The reversal of 201131003320123 is 321023300131102.

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 201131003320123 - 2⁹ = 201131003319611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201131003320094 and 201131003320103.

It is not an unprimeable number, because it can be changed into a prime (201131003320127) 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, 5915617744693 + ... + 5915617744726.

It is an arithmetic number, because the mean of its divisors is an integer number (53240559702390).

Almost surely, 2^{201131003320123} is an apocalyptic number.

201131003320123 is a deficient number, since it is larger than the sum of its proper divisors (11831235489437).

201131003320123 is a wasteful number, since it uses less digits than its factorization.

201131003320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11831235489436.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 201131003320123 its reverse (321023300131102), we get a palindrome (522154303451225).

The spelling of 201131003320123 in words is "two hundred one trillion, one hundred thirty-one billion, three million, three hundred twenty thousand, one hundred twenty-three".