130020237844 has 24 divisors (see below), whose sum is σ = 260048243840. Its totient is φ = 55721294496.

The previous prime is 130020237839. The next prime is 130020237863. The reversal of 130020237844 is 448732020031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1539097 + ... + 1621375.

Almost surely, 2^130020237844 is an apocalyptic number.

130020237844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

130020237844 is an abundant number, since it is smaller than the sum of its proper divisors (130028005996).

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

130020237844 is a wasteful number, since it uses less digits than its factorization.

130020237844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138727 (or 138725 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 130020237844 its reverse (448732020031), we get a palindrome (578752257875).

The spelling of 130020237844 in words is "one hundred thirty billion, twenty million, two hundred thirty-seven thousand, eight hundred forty-four".