2145032111 has 2 divisors, whose sum is σ = 2145032112. Its totient is φ = 2145032110.

The previous prime is 2145032083. The next prime is 2145032179. The reversal of 2145032111 is 1112305412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145032111 - 2⁶ = 2145032047 is a prime.

It is a super-2 number, since 2×2145032111² = 9202325514442232642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145022111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072516055 + 1072516056.

It is an arithmetic number, because the mean of its divisors is an integer number (1072516056).

Almost surely, 2^2145032111 is an apocalyptic number.

2145032111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145032111 is an equidigital number, since it uses as much as digits as its factorization.

2145032111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2145032111 is about 46314.4913714919. The cubic root of 2145032111 is about 1289.6680256667.

Adding to 2145032111 its reverse (1112305412), we get a palindrome (3257337523).

The spelling of 2145032111 in words is "two billion, one hundred forty-five million, thirty-two thousand, one hundred eleven".