130843819821 has 32 divisors (see below), whose sum is σ = 205008427008. Its totient is φ = 73181384640.

The previous prime is 130843819819. The next prime is 130843819861. The reversal of 130843819821 is 128918348031.

It is not a de Polignac number, because 130843819821 - 2¹ = 130843819819 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130843819861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1821040 + ... + 1891526.

It is an arithmetic number, because the mean of its divisors is an integer number (6406513344).

Almost surely, 2^130843819821 is an apocalyptic number.

130843819821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130843819821 is a deficient number, since it is larger than the sum of its proper divisors (74164607187).

130843819821 is a wasteful number, since it uses less digits than its factorization.

130843819821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74841.

The product of its (nonzero) digits is 331776, while the sum is 48.

The spelling of 130843819821 in words is "one hundred thirty billion, eight hundred forty-three million, eight hundred nineteen thousand, eight hundred twenty-one".