13312213031 has 4 divisors (see below), whose sum is σ = 14336229432. Its totient is φ = 12288196632.

The previous prime is 13312212997. The next prime is 13312213051. The reversal of 13312213031 is 13031221331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13031221331 = 2251 ⋅5789081.

It is a cyclic number.

It is not a de Polignac number, because 13312213031 - 2¹⁸ = 13311950887 is a prime.

It is a super-2 number, since 2×13312213031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13312212994 and 13312213012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312213051) 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, 512008181 + ... + 512008206.

It is an arithmetic number, because the mean of its divisors is an integer number (3584057358).

Almost surely, 2^13312213031 is an apocalyptic number.

13312213031 is a deficient number, since it is larger than the sum of its proper divisors (1024016401).

13312213031 is a wasteful number, since it uses less digits than its factorization.

13312213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024016400.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13312213031 its reverse (13031221331), we get a palindrome (26343434362).

The spelling of 13312213031 in words is "thirteen billion, three hundred twelve million, two hundred thirteen thousand, thirty-one".