130331403 has 16 divisors (see below), whose sum is σ = 194157600. Its totient is φ = 86404320.

The previous prime is 130331389. The next prime is 130331407. The reversal of 130331403 is 304133031.

It is not a de Polignac number, because 130331403 - 2⁴ = 130331387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130331407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8448 + ... + 18221.

It is an arithmetic number, because the mean of its divisors is an integer number (12134850).

Almost surely, 2^130331403 is an apocalyptic number.

130331403 is a deficient number, since it is larger than the sum of its proper divisors (63826197).

130331403 is a wasteful number, since it uses less digits than its factorization.

130331403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26859 (or 26853 counting only the distinct ones).

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

The square root of 130331403 is about 11416.2779836512. The cubic root of 130331403 is about 507.0098033887.

Adding to 130331403 its reverse (304133031), we get a palindrome (434464434).

The spelling of 130331403 in words is "one hundred thirty million, three hundred thirty-one thousand, four hundred three".