131020221102 has 8 divisors (see below), whose sum is σ = 262040442216. Its totient is φ = 43673407032.

The previous prime is 131020221089. The next prime is 131020221103. The reversal of 131020221102 is 201122020131.

It is a sphenic number, since it is the product of 3 distinct primes.

131020221102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020221103) 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, 10918351753 + ... + 10918351764.

It is an arithmetic number, because the mean of its divisors is an integer number (32755055277).

Almost surely, 2^131020221102 is an apocalyptic number.

131020221102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131020221102 is a wasteful number, since it uses less digits than its factorization.

131020221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21836703522.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 131020221102 its reverse (201122020131), we get a palindrome (332142241233).

The spelling of 131020221102 in words is "one hundred thirty-one billion, twenty million, two hundred twenty-one thousand, one hundred two".