5231359121 has 4 divisors (see below), whose sum is σ = 5250245172. Its totient is φ = 5212473072.

The previous prime is 5231359099. The next prime is 5231359123. The reversal of 5231359121 is 1219531325.

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 591024721 + 4640334400 = 24311^2 + 68120^2 .

It is a cyclic number.

It is not a de Polignac number, because 5231359121 - 2⁶ = 5231359057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5231359123) 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, 9442610 + ... + 9443163.

It is an arithmetic number, because the mean of its divisors is an integer number (1312561293).

Almost surely, 2^5231359121 is an apocalyptic number.

It is an amenable number.

5231359121 is a deficient number, since it is larger than the sum of its proper divisors (18886051).

5231359121 is a wasteful number, since it uses less digits than its factorization.

5231359121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18886050.

The product of its digits is 8100, while the sum is 32.

The square root of 5231359121 is about 72328.1350582192. The cubic root of 5231359121 is about 1735.9538610744.

The spelling of 5231359121 in words is "five billion, two hundred thirty-one million, three hundred fifty-nine thousand, one hundred twenty-one".