131313220001101 has 4 divisors (see below), whose sum is σ = 132038707404604. Its totient is φ = 130587732597600.

The previous prime is 131313220001063. The next prime is 131313220001107. The reversal of 131313220001101 is 101100022313131.

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 453233247076 + 130859986754025 = 673226^2 + 11439405^2 .

It is a cyclic number.

It is not a de Polignac number, because 131313220001101 - 2²¹ = 131313217903949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313220001107) 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, 362743701480 + ... + 362743701841.

It is an arithmetic number, because the mean of its divisors is an integer number (33009676851151).

Almost surely, 2^{131313220001101} is an apocalyptic number.

It is an amenable number.

131313220001101 is a deficient number, since it is larger than the sum of its proper divisors (725487403503).

131313220001101 is an equidigital number, since it uses as much as digits as its factorization.

131313220001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725487403502.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 131313220001101 its reverse (101100022313131), we get a palindrome (232413242314232).

The spelling of 131313220001101 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred twenty million, one thousand, one hundred one".