2125132161513 has 4 divisors (see below), whose sum is σ = 2833509548688. Its totient is φ = 1416754774340.

The previous prime is 2125132161491. The next prime is 2125132161521. The reversal of 2125132161513 is 3151612315212.

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 2125132161513 - 2³³ = 2116542226921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2125132161913) 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, 354188693583 + ... + 354188693588.

It is an arithmetic number, because the mean of its divisors is an integer number (708377387172).

Almost surely, 2^{2125132161513} is an apocalyptic number.

It is an amenable number.

2125132161513 is a deficient number, since it is larger than the sum of its proper divisors (708377387175).

2125132161513 is an equidigital number, since it uses as much as digits as its factorization.

2125132161513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708377387174.

The product of its digits is 10800, while the sum is 33.

Adding to 2125132161513 its reverse (3151612315212), we get a palindrome (5276744476725).

The spelling of 2125132161513 in words is "two trillion, one hundred twenty-five billion, one hundred thirty-two million, one hundred sixty-one thousand, five hundred thirteen".