131101224 has 32 divisors (see below), whose sum is σ = 333940320. Its totient is φ = 42875456.

The previous prime is 131101213. The next prime is 131101237. The reversal of 131101224 is 422101131.

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, 50262 + ... + 52805.

It is an arithmetic number, because the mean of its divisors is an integer number (10435635).

Almost surely, 2^131101224 is an apocalyptic number.

It is an amenable number.

131101224 is an abundant number, since it is smaller than the sum of its proper divisors (202839096).

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

131101224 is a wasteful number, since it uses less digits than its factorization.

131101224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103129 (or 103125 counting only the distinct ones).

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

The square root of 131101224 is about 11449.9442793404. The cubic root of 131101224 is about 508.0060862726.

Adding to 131101224 its reverse (422101131), we get a palindrome (553202355).

The spelling of 131101224 in words is "one hundred thirty-one million, one hundred one thousand, two hundred twenty-four".