8423145111 has 4 divisors (see below), whose sum is σ = 11230860152. Its totient is φ = 5615430072.

The previous prime is 8423145047. The next prime is 8423145139. The reversal of 8423145111 is 1115413248.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8423145111 - 2⁶ = 8423145047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423145161) 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, 1403857516 + ... + 1403857521.

It is an arithmetic number, because the mean of its divisors is an integer number (2807715038).

Almost surely, 2^8423145111 is an apocalyptic number.

8423145111 is a deficient number, since it is larger than the sum of its proper divisors (2807715041).

8423145111 is a wasteful number, since it uses less digits than its factorization.

8423145111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807715040.

The product of its digits is 3840, while the sum is 30.

The square root of 8423145111 is about 91777.6939729911. The cubic root of 8423145111 is about 2034.6580337232.

Adding to 8423145111 its reverse (1115413248), we get a palindrome (9538558359).

The spelling of 8423145111 in words is "eight billion, four hundred twenty-three million, one hundred forty-five thousand, one hundred eleven".