3138318823 has 4 divisors (see below), whose sum is σ = 3138449328. Its totient is φ = 3138188320.

The previous prime is 3138318803. The next prime is 3138318851. The reversal of 3138318823 is 3288138313.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3138318823 - 2¹⁷ = 3138187751 is a prime.

It is a super-2 number, since 2×3138318823² = 19698090069592210658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138318803) 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, 17563 + ... + 81148.

It is an arithmetic number, because the mean of its divisors is an integer number (784612332).

Almost surely, 2^3138318823 is an apocalyptic number.

3138318823 is a deficient number, since it is larger than the sum of its proper divisors (130505).

3138318823 is an equidigital number, since it uses as much as digits as its factorization.

3138318823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130504.

The product of its digits is 82944, while the sum is 40.

The square root of 3138318823 is about 56020.6999510003. The cubic root of 3138318823 is about 1464.0829639286.

The spelling of 3138318823 in words is "three billion, one hundred thirty-eight million, three hundred eighteen thousand, eight hundred twenty-three".