131343221430 has 48 divisors (see below), whose sum is σ = 341726776560. Its totient is φ = 35000817984.

The previous prime is 131343221353. The next prime is 131343221507. The reversal of 131343221430 is 34122343131.

It is a happy number.

131343221430 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 4 + 3 + 221 + 430 = 666.

It is an interprime number because it is at equal distance from previous prime (131343221353) and next prime (131343221507).

It is a super-2 number, since 2×131343221430² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131343221394 and 131343221403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368817 + ... + 631436.

It is an arithmetic number, because the mean of its divisors is an integer number (7119307845).

Almost surely, 2^131343221430 is an apocalyptic number.

131343221430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131343221430 is an abundant number, since it is smaller than the sum of its proper divisors (210383555130).

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

131343221430 is a wasteful number, since it uses less digits than its factorization.

131343221430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001725 (or 1001722 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 131343221430 its reverse (34122343131), we get a palindrome (165465564561).

The spelling of 131343221430 in words is "one hundred thirty-one billion, three hundred forty-three million, two hundred twenty-one thousand, four hundred thirty".