13212207031 has 4 divisors (see below), whose sum is σ = 13343021064. Its totient is φ = 13081393000.

The previous prime is 13212206981. The next prime is 13212207059. The reversal of 13212207031 is 13070221231.

It is a happy number.

13212207031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13212207031 - 2¹⁷ = 13212075959 is a prime.

It is a super-2 number, since 2×13212207031² (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 = 13212206993 and 13212207011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212007031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65406865 + ... + 65407066.

It is an arithmetic number, because the mean of its divisors is an integer number (3335755266).

Almost surely, 2^13212207031 is an apocalyptic number.

13212207031 is a deficient number, since it is larger than the sum of its proper divisors (130814033).

13212207031 is a wasteful number, since it uses less digits than its factorization.

13212207031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130814032.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 13212207031 its reverse (13070221231), we get a palindrome (26282428262).

The spelling of 13212207031 in words is "thirteen billion, two hundred twelve million, two hundred seven thousand, thirty-one".