130421143 has 4 divisors (see below), whose sum is σ = 132207808. Its totient is φ = 128634480.

The previous prime is 130421131. The next prime is 130421147. The reversal of 130421143 is 341124031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130421143 - 2²¹ = 128323991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130421143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130421147) 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, 893223 + ... + 893368.

It is an arithmetic number, because the mean of its divisors is an integer number (33051952).

Almost surely, 2^130421143 is an apocalyptic number.

130421143 is a deficient number, since it is larger than the sum of its proper divisors (1786665).

130421143 is an equidigital number, since it uses as much as digits as its factorization.

130421143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786664.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 130421143 is about 11420.2076601085. The cubic root of 130421143 is about 507.1261442958.

Adding to 130421143 its reverse (341124031), we get a palindrome (471545174).

The spelling of 130421143 in words is "one hundred thirty million, four hundred twenty-one thousand, one hundred forty-three".