12213203031 has 32 divisors (see below), whose sum is σ = 18313011200. Its totient is φ = 8043960960.

The previous prime is 12213203027. The next prime is 12213203033. The reversal of 12213203031 is 13030231221.

It is not a de Polignac number, because 12213203031 - 2² = 12213203027 is a prime.

It is a super-2 number, since 2×12213203031² (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 = 12213202995 and 12213203013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213203033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819000 + ... + 833778.

It is an arithmetic number, because the mean of its divisors is an integer number (572281600).

Almost surely, 2^12213203031 is an apocalyptic number.

12213203031 is a deficient number, since it is larger than the sum of its proper divisors (6099808169).

12213203031 is a wasteful number, since it uses less digits than its factorization.

12213203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15156 (or 15150 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12213203031 its reverse (13030231221), we get a palindrome (25243434252).

The spelling of 12213203031 in words is "twelve billion, two hundred thirteen million, two hundred three thousand, thirty-one".