131021324 has 12 divisors (see below), whose sum is σ = 262042704. Its totient is φ = 56151984.

The previous prime is 131021323. The next prime is 131021327. The reversal of 131021324 is 423120131.

131021324 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (131021323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339639 + ... + 2339694.

It is an arithmetic number, because the mean of its divisors is an integer number (21836892).

Almost surely, 2^131021324 is an apocalyptic number.

131021324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131021324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131021324 is a wasteful number, since it uses less digits than its factorization.

131021324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679344 (or 4679342 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131021324 is about 11446.4546476191. The cubic root of 131021324 is about 507.9028633998.

Adding to 131021324 its reverse (423120131), we get a palindrome (554141455).

The spelling of 131021324 in words is "one hundred thirty-one million, twenty-one thousand, three hundred twenty-four".