131220102112 has 48 divisors (see below), whose sum is σ = 298402946352. Its totient is φ = 56136939520.

The previous prime is 131220102109. The next prime is 131220102127. The reversal of 131220102112 is 211201022131.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10958263 + ... + 10970230.

It is an arithmetic number, because the mean of its divisors is an integer number (6216728049).

Almost surely, 2^131220102112 is an apocalyptic number.

It is an amenable number.

131220102112 is an abundant number, since it is smaller than the sum of its proper divisors (167182844240).

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

131220102112 is a wasteful number, since it uses less digits than its factorization.

131220102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21928531 (or 21928523 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 131220102112 its reverse (211201022131), we get a palindrome (342421124243).

It can be divided in two parts, 131220 and 102112, that added together give a palindrome (233332).

The spelling of 131220102112 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred two thousand, one hundred twelve".