3218778123 has 32 divisors (see below), whose sum is σ = 4754280960. Its totient is φ = 1920695040.

The previous prime is 3218778091. The next prime is 3218778131.

3218778123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3218778123 - 2⁵ = 3218778091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3218778023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2439658 + ... + 2440976.

It is an arithmetic number, because the mean of its divisors is an integer number (148571280).

Almost surely, 2^3218778123 is an apocalyptic number.

3218778123 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3218778123 is a deficient number, since it is larger than the sum of its proper divisors (1535502837).

3218778123 is a wasteful number, since it uses less digits than its factorization.

3218778123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419.

The product of its digits is 112896, while the sum is 42.

The square root of 3218778123 is about 56734.2764384988. The cubic root of 3218778123 is about 1476.4894460300.

The spelling of 3218778123 in words is "three billion, two hundred eighteen million, seven hundred seventy-eight thousand, one hundred twenty-three".