131103120 has 40 divisors (see below), whose sum is σ = 406420416. Its totient is φ = 34960768.

The previous prime is 131103103. The next prime is 131103127. The reversal of 131103120 is 21301131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 131103096 and 131103105.

It is not an unprimeable number, because it can be changed into a prime (131103127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272892 + ... + 273371.

Almost surely, 2^131103120 is an apocalyptic number.

131103120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131103120 is an abundant number, since it is smaller than the sum of its proper divisors (275317296).

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

131103120 is a wasteful number, since it uses less digits than its factorization.

131103120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546279 (or 546273 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131103120 is about 11450.0270742038. The cubic root of 131103120 is about 508.0085352070.

Adding to 131103120 its reverse (21301131), we get a palindrome (152404251).

The spelling of 131103120 in words is "one hundred thirty-one million, one hundred three thousand, one hundred twenty".