131033430 has 64 divisors (see below), whose sum is σ = 381196800. Its totient is φ = 31764960.

The previous prime is 131033401. The next prime is 131033459. The reversal of 131033430 is 34330131.

It is an interprime number because it is at equal distance from previous prime (131033401) and next prime (131033459).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19090 + ... + 25029.

It is an arithmetic number, because the mean of its divisors is an integer number (5956200).

Almost surely, 2^131033430 is an apocalyptic number.

131033430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131033430 is an abundant number, since it is smaller than the sum of its proper divisors (250163370).

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

131033430 is a wasteful number, since it uses less digits than its factorization.

131033430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44146 (or 44140 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 131033430 is about 11446.9834454323. The cubic root of 131033430 is about 507.9185058477.

Adding to 131033430 its reverse (34330131), we get a palindrome (165363561).

The spelling of 131033430 in words is "one hundred thirty-one million, thirty-three thousand, four hundred thirty".