131230000 has 100 divisors (see below), whose sum is σ = 346895208. Its totient is φ = 47680000.

The previous prime is 131229997. The next prime is 131230003. The reversal of 131230000 is 32131.

It is an interprime number because it is at equal distance from previous prime (131229997) and next prime (131230003).

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (131230003) 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 19 ways as a sum of consecutive naturals, for example, 109404 + ... + 110596.

Almost surely, 2^131230000 is an apocalyptic number.

131230000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173447604).

131230000 is an abundant number, since it is smaller than the sum of its proper divisors (215665208).

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

131230000 is a wasteful number, since it uses less digits than its factorization.

131230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 131230000 is about 11455.5663325739. The cubic root of 131230000 is about 508.1723638554.

Adding to 131230000 its reverse (32131), we get a palindrome (131262131).

The spelling of 131230000 in words is "one hundred thirty-one million, two hundred thirty thousand".