2125432013 has 4 divisors (see below), whose sum is σ = 2193994368. Its totient is φ = 2056869660.

The previous prime is 2125432009. The next prime is 2125432031. The reversal of 2125432013 is 3102345212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2125432013 - 2² = 2125432009 is a prime.

It is a super-2 number, since 2×2125432013² = 9034922483770464338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2125432013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125432003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34281131 + ... + 34281192.

It is an arithmetic number, because the mean of its divisors is an integer number (548498592).

Almost surely, 2^2125432013 is an apocalyptic number.

It is an amenable number.

2125432013 is a deficient number, since it is larger than the sum of its proper divisors (68562355).

2125432013 is an equidigital number, since it uses as much as digits as its factorization.

2125432013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68562354.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2125432013 is about 46102.4078872243. The cubic root of 2125432013 is about 1285.7279131178.

Adding to 2125432013 its reverse (3102345212), we get a palindrome (5227777225).

The spelling of 2125432013 in words is "two billion, one hundred twenty-five million, four hundred thirty-two thousand, thirteen".