131403020233313 has 4 divisors (see below), whose sum is σ = 139132609658820. Its totient is φ = 123673430807808.

The previous prime is 131403020233291. The next prime is 131403020233379. The reversal of 131403020233313 is 313332020304131.

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 71439803170849 + 59963217062464 = 8452207^2 + 7743592^2 .

It is a cyclic number.

It is not a de Polignac number, because 131403020233313 - 2¹⁸ = 131403019971169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131403020233013) 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, 3864794712728 + ... + 3864794712761.

It is an arithmetic number, because the mean of its divisors is an integer number (34783152414705).

Almost surely, 2^{131403020233313} is an apocalyptic number.

It is an amenable number.

131403020233313 is a deficient number, since it is larger than the sum of its proper divisors (7729589425507).

131403020233313 is an equidigital number, since it uses as much as digits as its factorization.

131403020233313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7729589425506.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 131403020233313 its reverse (313332020304131), we get a palindrome (444735040537444).

The spelling of 131403020233313 in words is "one hundred thirty-one trillion, four hundred three billion, twenty million, two hundred thirty-three thousand, three hundred thirteen".