2113122340505 has 32 divisors (see below), whose sum is σ = 2796375149568. Its totient is φ = 1520178566400.

The previous prime is 2113122340489. The next prime is 2113122340513. The reversal of 2113122340505 is 5050432213112.

It is not a de Polignac number, because 2113122340505 - 2⁴ = 2113122340489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1376915 + ... + 2474295.

It is an arithmetic number, because the mean of its divisors is an integer number (87386723424).

Almost surely, 2^{2113122340505} is an apocalyptic number.

It is an amenable number.

2113122340505 is a deficient number, since it is larger than the sum of its proper divisors (683252809063).

2113122340505 is a wasteful number, since it uses less digits than its factorization.

2113122340505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097777.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 2113122340505 its reverse (5050432213112), we get a palindrome (7163554553617).

The spelling of 2113122340505 in words is "two trillion, one hundred thirteen billion, one hundred twenty-two million, three hundred forty thousand, five hundred five".