131123343 has 16 divisors (see below), whose sum is σ = 191369696. Its totient is φ = 79367040.

The previous prime is 131123341. The next prime is 131123347. The reversal of 131123343 is 343321131.

It is not a de Polignac number, because 131123343 - 2¹ = 131123341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25180 + ... + 29937.

It is an arithmetic number, because the mean of its divisors is an integer number (11960606).

Almost surely, 2^131123343 is an apocalyptic number.

131123343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131123343 is a deficient number, since it is larger than the sum of its proper divisors (60246353).

131123343 is a wasteful number, since it uses less digits than its factorization.

131123343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55194.

The product of its digits is 648, while the sum is 21.

The square root of 131123343 is about 11450.9101384999. The cubic root of 131123343 is about 508.0346544136.

Adding to 131123343 its reverse (343321131), we get a palindrome (474444474).

The spelling of 131123343 in words is "one hundred thirty-one million, one hundred twenty-three thousand, three hundred forty-three".