131003120 has 20 divisors (see below), whose sum is σ = 304582440. Its totient is φ = 52401216.

The previous prime is 131003113. The next prime is 131003149. The reversal of 131003120 is 21300131.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818690 + ... + 818849.

It is an arithmetic number, because the mean of its divisors is an integer number (15229122).

Almost surely, 2^131003120 is an apocalyptic number.

131003120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131003120 is an abundant number, since it is smaller than the sum of its proper divisors (173579320).

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

131003120 is a wasteful number, since it uses less digits than its factorization.

131003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637552 (or 1637546 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 131003120 is about 11445.6594392809. The cubic root of 131003120 is about 507.8793397684.

Adding to 131003120 its reverse (21300131), we get a palindrome (152303251).

The spelling of 131003120 in words is "one hundred thirty-one million, three thousand, one hundred twenty".