2115543211325 has 12 divisors (see below), whose sum is σ = 2630017228020. Its totient is φ = 1688083829760.

The previous prime is 2115543211217. The next prime is 2115543211339. The reversal of 2115543211325 is 5231123455112.

It can be written as a sum of positive squares in 6 ways, for example, as 786141129316 + 1329402082009 = 886646^2 + 1152997^2 .

It is not a de Polignac number, because 2115543211325 - 2³⁰ = 2114469469501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108758564 + ... + 108778013.

It is an arithmetic number, because the mean of its divisors is an integer number (219168102335).

Almost surely, 2^{2115543211325} is an apocalyptic number.

2115543211325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2115543211325 is a deficient number, since it is larger than the sum of its proper divisors (514474016695).

2115543211325 is a wasteful number, since it uses less digits than its factorization.

2115543211325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217536976 (or 217536971 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

Adding to 2115543211325 its reverse (5231123455112), we get a palindrome (7346666666437).

The spelling of 2115543211325 in words is "two trillion, one hundred fifteen billion, five hundred forty-three million, two hundred eleven thousand, three hundred twenty-five".