5312012203423 has 4 divisors (see below), whose sum is σ = 5316510098088. Its totient is φ = 5307514308760.

The previous prime is 5312012203349. The next prime is 5312012203427. The reversal of 5312012203423 is 3243022102135.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5312012203423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5312012203391 and 5312012203400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5312012203427) 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, 2248945561 + ... + 2248947922.

It is an arithmetic number, because the mean of its divisors is an integer number (1329127524522).

Almost surely, 2^{5312012203423} is an apocalyptic number.

5312012203423 is a deficient number, since it is larger than the sum of its proper divisors (4497894665).

5312012203423 is a wasteful number, since it uses less digits than its factorization.

5312012203423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4497894664.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 5312012203423 its reverse (3243022102135), we get a palindrome (8555034305558).

The spelling of 5312012203423 in words is "five trillion, three hundred twelve billion, twelve million, two hundred three thousand, four hundred twenty-three".