131323434 has 32 divisors (see below), whose sum is σ = 294273216. Its totient is φ = 38718720.

The previous prime is 131323411. The next prime is 131323441. The reversal of 131323434 is 434323131.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24447 + ... + 29330.

It is an arithmetic number, because the mean of its divisors is an integer number (9196038).

Almost surely, 2^131323434 is an apocalyptic number.

131323434 is an abundant number, since it is smaller than the sum of its proper divisors (162949782).

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

131323434 is a wasteful number, since it uses less digits than its factorization.

131323434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53830.

The product of its digits is 2592, while the sum is 24.

The square root of 131323434 is about 11459.6437117390. The cubic root of 131323434 is about 508.2929392131.

Adding to 131323434 its reverse (434323131), we get a palindrome (565646565).

The spelling of 131323434 in words is "one hundred thirty-one million, three hundred twenty-three thousand, four hundred thirty-four".