130121643 has 8 divisors (see below), whose sum is σ = 174061888. Its totient is φ = 86464584.

The previous prime is 130121627. The next prime is 130121657. The reversal of 130121643 is 346121031.

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

It is not a de Polignac number, because 130121643 - 2⁴ = 130121627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130121543) 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, 69721 + ... + 71562.

It is an arithmetic number, because the mean of its divisors is an integer number (21757736).

Almost surely, 2^130121643 is an apocalyptic number.

130121643 is a deficient number, since it is larger than the sum of its proper divisors (43940245).

130121643 is a wasteful number, since it uses less digits than its factorization.

130121643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141593.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 130121643 is about 11407.0874021373. The cubic root of 130121643 is about 506.7376574601.

Adding to 130121643 its reverse (346121031), we get a palindrome (476242674).

The spelling of 130121643 in words is "one hundred thirty million, one hundred twenty-one thousand, six hundred forty-three".