131320220102 has 4 divisors (see below), whose sum is σ = 196980330156. Its totient is φ = 65660110050.

The previous prime is 131320220071. The next prime is 131320220107. The reversal of 131320220102 is 201022023131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320220107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32830055024 + ... + 32830055027.

It is an arithmetic number, because the mean of its divisors is an integer number (49245082539).

Almost surely, 2^131320220102 is an apocalyptic number.

131320220102 is a deficient number, since it is larger than the sum of its proper divisors (65660110054).

131320220102 is an equidigital number, since it uses as much as digits as its factorization.

131320220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65660110053.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 131320220102 its reverse (201022023131), we get a palindrome (332342243233).

The spelling of 131320220102 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred twenty thousand, one hundred two".