131201103133 has 4 divisors (see below), whose sum is σ = 138918815100. Its totient is φ = 123483391168.

The previous prime is 131201103107. The next prime is 131201103139. The reversal of 131201103133 is 331301102131.

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 49105673604 + 82095429529 = 221598^2 + 286523^2 .

It is a cyclic number.

It is not a de Polignac number, because 131201103133 - 2⁹ = 131201102621 is a prime.

It is a super-2 number, since 2×131201103133² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131201103133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201103139) 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, 3858855958 + ... + 3858855991.

It is an arithmetic number, because the mean of its divisors is an integer number (34729703775).

Almost surely, 2^131201103133 is an apocalyptic number.

It is an amenable number.

131201103133 is a deficient number, since it is larger than the sum of its proper divisors (7717711967).

131201103133 is an equidigital number, since it uses as much as digits as its factorization.

131201103133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717711966.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 131201103133 its reverse (331301102131), we get a palindrome (462502205264).

The spelling of 131201103133 in words is "one hundred thirty-one billion, two hundred one million, one hundred three thousand, one hundred thirty-three".