54023131321 has 4 divisors (see below), whose sum is σ = 54297360612. Its totient is φ = 53748902032.

The previous prime is 54023131291. The next prime is 54023131343. The reversal of 54023131321 is 12313132045.

It is a happy number.

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 47344972921 + 6678158400 = 217589^2 + 81720^2 .

It is a cyclic number.

It is not a de Polignac number, because 54023131321 - 2⁵ = 54023131289 is a prime.

It is a super-2 number, since 2×54023131321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54023131361) 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, 137114350 + ... + 137114743.

It is an arithmetic number, because the mean of its divisors is an integer number (13574340153).

Almost surely, 2^54023131321 is an apocalyptic number.

It is an amenable number.

54023131321 is a deficient number, since it is larger than the sum of its proper divisors (274229291).

54023131321 is a wasteful number, since it uses less digits than its factorization.

54023131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274229290.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 54023131321 its reverse (12313132045), we get a palindrome (66336263366).

The spelling of 54023131321 in words is "fifty-four billion, twenty-three million, one hundred thirty-one thousand, three hundred twenty-one".