3130143521 has 4 divisors (see below), whose sum is σ = 3143812500. Its totient is φ = 3116474544.

The previous prime is 3130143509. The next prime is 3130143551. The reversal of 3130143521 is 1253410313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1358659600 + 1771483921 = 36860^2 + 42089^2 .

It is a cyclic number.

It is not a de Polignac number, because 3130143521 - 2²⁶ = 3063034657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3130143551) 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, 6834146 + ... + 6834603.

It is an arithmetic number, because the mean of its divisors is an integer number (785953125).

Almost surely, 2^3130143521 is an apocalyptic number.

It is an amenable number.

3130143521 is a deficient number, since it is larger than the sum of its proper divisors (13668979).

3130143521 is a wasteful number, since it uses less digits than its factorization.

3130143521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13668978.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 3130143521 is about 55947.6855732210. The cubic root of 3130143521 is about 1462.8105492524.

Adding to 3130143521 its reverse (1253410313), we get a palindrome (4383553834).

The spelling of 3130143521 in words is "three billion, one hundred thirty million, one hundred forty-three thousand, five hundred twenty-one".