131103132220 has 24 divisors (see below), whose sum is σ = 275780880144. Its totient is φ = 52352814336.

The previous prime is 131103132217. The next prime is 131103132221. The reversal of 131103132220 is 22231301131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131103132221) 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, 5515254 + ... + 5538973.

It is an arithmetic number, because the mean of its divisors is an integer number (11490870006).

Almost surely, 2^131103132220 is an apocalyptic number.

131103132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131103132220 is an abundant number, since it is smaller than the sum of its proper divisors (144677747924).

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

131103132220 is a wasteful number, since it uses less digits than its factorization.

131103132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11054829 (or 11054827 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131103132220 its reverse (22231301131), we get a palindrome (153334433351).

The spelling of 131103132220 in words is "one hundred thirty-one billion, one hundred three million, one hundred thirty-two thousand, two hundred twenty".