12313203533 has 4 divisors (see below), whose sum is σ = 12481877628. Its totient is φ = 12144529440.

The previous prime is 12313203451. The next prime is 12313203541. The reversal of 12313203533 is 33530231321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33530231321 = 55639 ⋅602639.

It can be written as a sum of positive squares in 2 ways, for example, as 7134674089 + 5178529444 = 84467^2 + 71962^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313203533 - 2¹⁶ = 12313137997 is a prime.

It is a super-2 number, since 2×12313203533² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313263533) 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, 84336938 + ... + 84337083.

It is an arithmetic number, because the mean of its divisors is an integer number (3120469407).

Almost surely, 2^12313203533 is an apocalyptic number.

It is an amenable number.

12313203533 is a deficient number, since it is larger than the sum of its proper divisors (168674095).

12313203533 is an equidigital number, since it uses as much as digits as its factorization.

12313203533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168674094.

The product of its (nonzero) digits is 4860, while the sum is 26.

Adding to 12313203533 its reverse (33530231321), we get a palindrome (45843434854).

The spelling of 12313203533 in words is "twelve billion, three hundred thirteen million, two hundred three thousand, five hundred thirty-three".