5108231281 has 4 divisors (see below), whose sum is σ = 5408715492. Its totient is φ = 4807747072.

The previous prime is 5108231239. The next prime is 5108231309. The reversal of 5108231281 is 1821328015.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4461037681 + 647193600 = 66791^2 + 25440^2 .

It is a cyclic number.

It is not a de Polignac number, because 5108231281 - 2⁷ = 5108231153 is a prime.

It is a super-2 number, since 2×5108231281² = 52188053640373801922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5108231081) 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, 150242080 + ... + 150242113.

It is an arithmetic number, because the mean of its divisors is an integer number (1352178873).

Almost surely, 2^5108231281 is an apocalyptic number.

It is an amenable number.

5108231281 is a deficient number, since it is larger than the sum of its proper divisors (300484211).

5108231281 is a wasteful number, since it uses less digits than its factorization.

5108231281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300484210.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 5108231281 is about 71471.8915448584. The cubic root of 5108231281 is about 1722.2261693129.

Adding to 5108231281 its reverse (1821328015), we get a palindrome (6929559296).

The spelling of 5108231281 in words is "five billion, one hundred eight million, two hundred thirty-one thousand, two hundred eighty-one".