131313211111023 has 4 divisors (see below), whose sum is σ = 175084281481368. Its totient is φ = 87542140740680.

The previous prime is 131313211111013. The next prime is 131313211111063. The reversal of 131313211111023 is 320111112313131.

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 131313211111023 - 2⁴ = 131313211111007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131313211110984 and 131313211111002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313211111013) 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, 21885535185168 + ... + 21885535185173.

It is an arithmetic number, because the mean of its divisors is an integer number (43771070370342).

Almost surely, 2^{131313211111023} is an apocalyptic number.

131313211111023 is a deficient number, since it is larger than the sum of its proper divisors (43771070370345).

131313211111023 is an equidigital number, since it uses as much as digits as its factorization.

131313211111023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43771070370344.

The product of its (nonzero) digits is 324, while the sum is 24.

Adding to 131313211111023 its reverse (320111112313131), we get a palindrome (451424323424154).

The spelling of 131313211111023 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred eleven million, one hundred eleven thousand, twenty-three".