5312123444052 has 18 divisors (see below), whose sum is σ = 13427867594778. Its totient is φ = 1770707814672.

The previous prime is 5312123444051. The next prime is 5312123444129. The reversal of 5312123444052 is 2504443212135.

It is a happy number.

5312123444052 is a `hidden beast` number, since 5 + 3 + 1 + 212 + 34 + 4 + 405 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4591994695236 + 720128748816 = 2142894^2 + 848604^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 147558984557 = 5312123444052 / (5 + 3 + 1 + 2 + 1 + 2 + 3 + 4 + 4 + 4 + 0 + 5 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 5312123443998 and 5312123444016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5312123444051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73779492243 + ... + 73779492314.

Almost surely, 2^{5312123444052} is an apocalyptic number.

It is an amenable number.

5312123444052 is an abundant number, since it is smaller than the sum of its proper divisors (8115744150726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5312123444052 is a wasteful number, since it uses less digits than its factorization.

5312123444052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147558984567 (or 147558984562 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 5312123444052 its reverse (2504443212135), we get a palindrome (7816566656187).

The spelling of 5312123444052 in words is "five trillion, three hundred twelve billion, one hundred twenty-three million, four hundred forty-four thousand, fifty-two".