131131430 has 8 divisors (see below), whose sum is σ = 236036592. Its totient is φ = 52452568.

The previous prime is 131131409. The next prime is 131131439. The reversal of 131131430 is 34131131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 131131399 and 131131408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131131439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6556562 + ... + 6556581.

It is an arithmetic number, because the mean of its divisors is an integer number (29504574).

Almost surely, 2^131131430 is an apocalyptic number.

131131430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131131430 is a deficient number, since it is larger than the sum of its proper divisors (104905162).

131131430 is a wasteful number, since it uses less digits than its factorization.

131131430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13113150.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 131131430 is about 11451.2632490918. The cubic root of 131131430 is about 508.0450985031.

Adding to 131131430 its reverse (34131131), we get a palindrome (165262561).

The spelling of 131131430 in words is "one hundred thirty-one million, one hundred thirty-one thousand, four hundred thirty".