130431336 has 96 divisors (see below), whose sum is σ = 381918240. Its totient is φ = 37011072.

The previous prime is 130431317. The next prime is 130431383. The reversal of 130431336 is 633134031.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 231391 + ... + 231953.

It is an arithmetic number, because the mean of its divisors is an integer number (3978315).

Almost surely, 2^130431336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130431336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190959120).

130431336 is an abundant number, since it is smaller than the sum of its proper divisors (251486904).

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

130431336 is a wasteful number, since it uses less digits than its factorization.

130431336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 130431336 is about 11420.6539217332. The cubic root of 130431336 is about 507.1393553494.

Adding to 130431336 its reverse (633134031), we get a palindrome (763565367).

It can be divided in two parts, 1304 and 31336, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 130431336 in words is "one hundred thirty million, four hundred thirty-one thousand, three hundred thirty-six".