2112023457 has 16 divisors (see below), whose sum is σ = 3134052480. Its totient is φ = 1405707696.

The previous prime is 2112023401. The next prime is 2112023467. The reversal of 2112023457 is 7543202112.

2112023457 is a `hidden beast` number, since 2 + 1 + 1 + 202 + 3 + 457 = 666.

It is not a de Polignac number, because 2112023457 - 2¹⁰ = 2112022433 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2112023457.

It is not an unprimeable number, because it can be changed into a prime (2112023467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47253 + ... + 80354.

It is an arithmetic number, because the mean of its divisors is an integer number (195878280).

Almost surely, 2^2112023457 is an apocalyptic number.

2112023457 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2112023457 is a deficient number, since it is larger than the sum of its proper divisors (1022029023).

2112023457 is a wasteful number, since it uses less digits than its factorization.

2112023457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128229 (or 128223 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2112023457 is about 45956.7563803191. The cubic root of 2112023457 is about 1283.0184819260.

Adding to 2112023457 its reverse (7543202112), we get a palindrome (9655225569).

The spelling of 2112023457 in words is "two billion, one hundred twelve million, twenty-three thousand, four hundred fifty-seven".