130021284 has 12 divisors (see below), whose sum is σ = 303383024. Its totient is φ = 43340424.

The previous prime is 130021279. The next prime is 130021289. The reversal of 130021284 is 482120031.

It is an interprime number because it is at equal distance from previous prime (130021279) and next prime (130021289).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 130021284.

It is not an unprimeable number, because it can be changed into a prime (130021289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5417542 + ... + 5417565.

Almost surely, 2^130021284 is an apocalyptic number.

It is an amenable number.

130021284 is an abundant number, since it is smaller than the sum of its proper divisors (173361740).

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

130021284 is a wasteful number, since it uses less digits than its factorization.

130021284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10835114 (or 10835112 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 130021284 is about 11402.6875779353. The cubic root of 130021284 is about 506.6073466639.

It can be divided in two parts, 130021 and 284, that added together give a triangular number (130305 = T₅₁₀).

The spelling of 130021284 in words is "one hundred thirty million, twenty-one thousand, two hundred eighty-four".