2112346451 has 4 divisors (see below), whose sum is σ = 2223522600. Its totient is φ = 2001170304.

The previous prime is 2112346409. The next prime is 2112346471. The reversal of 2112346451 is 1546432112.

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 2112346451 - 2³⁰ = 1038604627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112346471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55588046 + ... + 55588083.

It is an arithmetic number, because the mean of its divisors is an integer number (555880650).

Almost surely, 2^2112346451 is an apocalyptic number.

2112346451 is a deficient number, since it is larger than the sum of its proper divisors (111176149).

2112346451 is a wasteful number, since it uses less digits than its factorization.

2112346451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111176148.

The product of its digits is 5760, while the sum is 29.

The square root of 2112346451 is about 45960.2703538611. The cubic root of 2112346451 is about 1283.0838830538.

Adding to 2112346451 its reverse (1546432112), we get a palindrome (3658778563).

The spelling of 2112346451 in words is "two billion, one hundred twelve million, three hundred forty-six thousand, four hundred fifty-one".