131220102113 has 4 divisors (see below), whose sum is σ = 136925323968. Its totient is φ = 125514880260.

The previous prime is 131220102109. The next prime is 131220102127. The reversal of 131220102113 is 311201022131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131220102113 - 2² = 131220102109 is a prime.

It is a super-2 number, since 2×131220102113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131220102091 and 131220102100.

It is not an unprimeable number, because it can be changed into a prime (131220102193) 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, 2852610893 + ... + 2852610938.

It is an arithmetic number, because the mean of its divisors is an integer number (34231330992).

Almost surely, 2^131220102113 is an apocalyptic number.

It is an amenable number.

131220102113 is a deficient number, since it is larger than the sum of its proper divisors (5705221855).

131220102113 is an equidigital number, since it uses as much as digits as its factorization.

131220102113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5705221854.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131220102113 its reverse (311201022131), we get a palindrome (442421124244).

The spelling of 131220102113 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred two thousand, one hundred thirteen".