2112634251 has 128 divisors (see below), whose sum is σ = 4191989760. Its totient is φ = 1019713536.

The previous prime is 2112634213. The next prime is 2112634259. The reversal of 2112634251 is 1524362112.

2112634251 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 634 + 25 + 1 = 666.

It is not a de Polignac number, because 2112634251 - 2¹⁰ = 2112633227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2112634259) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1544770 + ... + 1546136.

It is an arithmetic number, because the mean of its divisors is an integer number (32749920).

Almost surely, 2^2112634251 is an apocalyptic number.

2112634251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2112634251 is a deficient number, since it is larger than the sum of its proper divisors (2079355509).

2112634251 is a wasteful number, since it uses less digits than its factorization.

2112634251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450 (or 1444 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2112634251 is about 45963.4012122689. The cubic root of 2112634251 is about 1283.1421523420.

Adding to 2112634251 its reverse (1524362112), we get a palindrome (3636996363).

The spelling of 2112634251 in words is "two billion, one hundred twelve million, six hundred thirty-four thousand, two hundred fifty-one".