5321312121 has 8 divisors (see below), whose sum is σ = 7468508320. Its totient is φ = 3360828672.

The previous prime is 5321312107. The next prime is 5321312147. The reversal of 5321312121 is 1212131235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5321312121 - 2⁶ = 5321312057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5321310121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46678120 + ... + 46678233.

It is an arithmetic number, because the mean of its divisors is an integer number (933563540).

Almost surely, 2^5321312121 is an apocalyptic number.

It is an amenable number.

5321312121 is a deficient number, since it is larger than the sum of its proper divisors (2147196199).

5321312121 is a wasteful number, since it uses less digits than its factorization.

5321312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93356375.

The product of its digits is 360, while the sum is 21.

The square root of 5321312121 is about 72947.3242895173. The cubic root of 5321312121 is about 1745.8472549480.

Adding to 5321312121 its reverse (1212131235), we get a palindrome (6533443356).

The spelling of 5321312121 in words is "five billion, three hundred twenty-one million, three hundred twelve thousand, one hundred twenty-one".