2111234345 has 32 divisors (see below), whose sum is σ = 2810578176. Its totient is φ = 1509580800.

The previous prime is 2111234309. The next prime is 2111234351. The reversal of 2111234345 is 5434321112.

It is a happy number.

It is not a de Polignac number, because 2111234345 - 2¹⁶ = 2111168809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2252717 + ... + 2253653.

It is an arithmetic number, because the mean of its divisors is an integer number (87830568).

Almost surely, 2^2111234345 is an apocalyptic number.

It is an amenable number.

2111234345 is a deficient number, since it is larger than the sum of its proper divisors (699343831).

2111234345 is a wasteful number, since it uses less digits than its factorization.

2111234345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601.

The product of its digits is 2880, while the sum is 26.

The square root of 2111234345 is about 45948.1702029580. The cubic root of 2111234345 is about 1282.8586712958.

Adding to 2111234345 its reverse (5434321112), we get a palindrome (7545555457).

The spelling of 2111234345 in words is "two billion, one hundred eleven million, two hundred thirty-four thousand, three hundred forty-five".