2152113511 has 4 divisors (see below), whose sum is σ = 2181594592. Its totient is φ = 2122632432.

The previous prime is 2152113479. The next prime is 2152113517. The reversal of 2152113511 is 1153112512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2152113511 - 2⁵ = 2152113479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152113517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14740431 + ... + 14740576.

It is an arithmetic number, because the mean of its divisors is an integer number (545398648).

Almost surely, 2^2152113511 is an apocalyptic number.

2152113511 is a deficient number, since it is larger than the sum of its proper divisors (29481081).

2152113511 is an equidigital number, since it uses as much as digits as its factorization.

2152113511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29481080.

The product of its digits is 300, while the sum is 22.

The square root of 2152113511 is about 46390.8774545169. The cubic root of 2152113511 is about 1291.0856615792.

Subtracting from 2152113511 its reverse (1153112512), we obtain a palindrome (999000999).

The spelling of 2152113511 in words is "two billion, one hundred fifty-two million, one hundred thirteen thousand, five hundred eleven".