131115241304220 has 24 divisors (see below), whose sum is σ = 367122675651984. Its totient is φ = 34964064347776.

The previous prime is 131115241304167. The next prime is 131115241304231. The reversal of 131115241304220 is 22403142511131.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1092627010809 + ... + 1092627010928.

It is an arithmetic number, because the mean of its divisors is an integer number (15296778152166).

Almost surely, 2^{131115241304220} is an apocalyptic number.

131115241304220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131115241304220 is an abundant number, since it is smaller than the sum of its proper divisors (236007434347764).

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

131115241304220 is a wasteful number, since it uses less digits than its factorization.

131115241304220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185254021749 (or 2185254021747 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 131115241304220 its reverse (22403142511131), we get a palindrome (153518383815351).

The spelling of 131115241304220 in words is "one hundred thirty-one trillion, one hundred fifteen billion, two hundred forty-one million, three hundred four thousand, two hundred twenty".