2125310111553 has 16 divisors (see below), whose sum is σ = 2845808179200. Its totient is φ = 1410843579600.

The previous prime is 2125310111527. The next prime is 2125310111567. The reversal of 2125310111553 is 3551110135212.

It is not a de Polignac number, because 2125310111553 - 2⁶ = 2125310111489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2125310111553.

It is not an unprimeable number, because it can be changed into a prime (2125310111513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10620738 + ... + 10818996.

It is an arithmetic number, because the mean of its divisors is an integer number (177863011200).

Almost surely, 2^{2125310111553} is an apocalyptic number.

It is an amenable number.

2125310111553 is a deficient number, since it is larger than the sum of its proper divisors (720498067647).

2125310111553 is a wasteful number, since it uses less digits than its factorization.

2125310111553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213452.

The product of its (nonzero) digits is 4500, while the sum is 30.

Adding to 2125310111553 its reverse (3551110135212), we get a palindrome (5676420246765).

The spelling of 2125310111553 in words is "two trillion, one hundred twenty-five billion, three hundred ten million, one hundred eleven thousand, five hundred fifty-three".