131220102111 has 8 divisors (see below), whose sum is σ = 199954441344. Its totient is φ = 74982915480.

The previous prime is 131220102109. The next prime is 131220102127. The reversal of 131220102111 is 111201022131.

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

It is not a de Polignac number, because 131220102111 - 2¹ = 131220102109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131220102011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3124288125 + ... + 3124288166.

It is an arithmetic number, because the mean of its divisors is an integer number (24994305168).

Almost surely, 2^131220102111 is an apocalyptic number.

131220102111 is a deficient number, since it is larger than the sum of its proper divisors (68734339233).

131220102111 is an equidigital number, since it uses as much as digits as its factorization.

131220102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6248576301.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 131220102111 its reverse (111201022131), we get a palindrome (242421124242).

The spelling of 131220102111 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred two thousand, one hundred eleven".