131123151 has 16 divisors (see below), whose sum is σ = 196600320. Its totient is φ = 86360760.

The previous prime is 131123143. The next prime is 131123171. The reversal of 131123151 is 151321131.

It is not a de Polignac number, because 131123151 - 2³ = 131123143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123131) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27015 + ... + 31496.

It is an arithmetic number, because the mean of its divisors is an integer number (12287520).

Almost surely, 2^131123151 is an apocalyptic number.

131123151 is a deficient number, since it is larger than the sum of its proper divisors (65477169).

131123151 is an equidigital number, since it uses as much as digits as its factorization.

131123151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58603 (or 58597 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 131123151 is about 11450.9017548838. The cubic root of 131123151 is about 508.0344064468.

Adding to 131123151 its reverse (151321131), we get a palindrome (282444282).

The spelling of 131123151 in words is "one hundred thirty-one million, one hundred twenty-three thousand, one hundred fifty-one".