130043021 has 8 divisors (see below), whose sum is σ = 135475200. Its totient is φ = 124718560.

The previous prime is 130043009. The next prime is 130043027. The reversal of 130043021 is 120340031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130043021 is a prime.

It is a super-2 number, since 2×130043021² = 33822374621612882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130042987 and 130043005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130043027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24461 + ... + 29298.

It is an arithmetic number, because the mean of its divisors is an integer number (16934400).

Almost surely, 2^130043021 is an apocalyptic number.

It is an amenable number.

130043021 is a deficient number, since it is larger than the sum of its proper divisors (5432179).

130043021 is an equidigital number, since it uses as much as digits as its factorization.

130043021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53859.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 130043021 is about 11403.6406905865. The cubic root of 130043021 is about 506.6355766838.

Adding to 130043021 its reverse (120340031), we get a palindrome (250383052).

The spelling of 130043021 in words is "one hundred thirty million, forty-three thousand, twenty-one".