130503402 has 12 divisors (see below), whose sum is σ = 282757410. Its totient is φ = 43501128.

The previous prime is 130503383. The next prime is 130503421. The reversal of 130503402 is 204305031.

It is an interprime number because it is at equal distance from previous prime (130503383) and next prime (130503421).

It can be written as a sum of positive squares in only one way, i.e., 114511401 + 15992001 = 10701^2 + 3999^2 .

It is a super-2 number, since 2×130503402² = 34062275867147208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7250189 = 130503402 / (1 + 3 + 0 + 5 + 0 + 3 + 4 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3625077 + ... + 3625112.

Almost surely, 2^130503402 is an apocalyptic number.

130503402 is an abundant number, since it is smaller than the sum of its proper divisors (152254008).

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

130503402 is a wasteful number, since it uses less digits than its factorization.

130503402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7250197 (or 7250194 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 130503402 is about 11423.8085593203. The cubic root of 130503402 is about 507.2327397995.

Adding to 130503402 its reverse (204305031), we get a palindrome (334808433).

The spelling of 130503402 in words is "one hundred thirty million, five hundred three thousand, four hundred two".