131433030 has 40 divisors (see below), whose sum is σ = 353410992. Its totient is φ = 35048592.

The previous prime is 131433023. The next prime is 131433041. The reversal of 131433030 is 30334131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131432994 and 131433012.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 80322 + ... + 81941.

Almost surely, 2^131433030 is an apocalyptic number.

131433030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131433030 is an abundant number, since it is smaller than the sum of its proper divisors (221977962).

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

131433030 is a wasteful number, since it uses less digits than its factorization.

131433030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162282 (or 162273 counting only the distinct ones).

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

The square root of 131433030 is about 11464.4245385453. The cubic root of 131433030 is about 508.4342985570.

Adding to 131433030 its reverse (30334131), we get a palindrome (161767161).

The spelling of 131433030 in words is "one hundred thirty-one million, four hundred thirty-three thousand, thirty".