2112404511 has 32 divisors (see below), whose sum is σ = 3328339968. Its totient is φ = 1166181120.

The previous prime is 2112404491. The next prime is 2112404527. The reversal of 2112404511 is 1154042112.

It is not a de Polignac number, because 2112404511 - 2¹⁰ = 2112403487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112403511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438331 + ... + 443123.

It is an arithmetic number, because the mean of its divisors is an integer number (104010624).

Almost surely, 2^2112404511 is an apocalyptic number.

2112404511 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2112404511 is a deficient number, since it is larger than the sum of its proper divisors (1215935457).

2112404511 is a wasteful number, since it uses less digits than its factorization.

2112404511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 2112404511 is about 45960.9019820108. The cubic root of 2112404511 is about 1283.0956385698.

Adding to 2112404511 its reverse (1154042112), we get a palindrome (3266446623).

The spelling of 2112404511 in words is "two billion, one hundred twelve million, four hundred four thousand, five hundred eleven".