12210043031 has 4 divisors (see below), whose sum is σ = 12540044232. Its totient is φ = 11880041832.

The previous prime is 12210043009. The next prime is 12210043037. The reversal of 12210043031 is 13034001221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13034001221 = 12689 ⋅1027189.

It is a cyclic number.

It is not a de Polignac number, because 12210043031 - 2⁶ = 12210042967 is a prime.

It is a super-2 number, since 2×12210043031² (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 (12210043037) 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, 165000545 + ... + 165000618.

It is an arithmetic number, because the mean of its divisors is an integer number (3135011058).

Almost surely, 2^12210043031 is an apocalyptic number.

12210043031 is a deficient number, since it is larger than the sum of its proper divisors (330001201).

12210043031 is an equidigital number, since it uses as much as digits as its factorization.

12210043031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330001200.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12210043031 its reverse (13034001221), we get a palindrome (25244044252).

The spelling of 12210043031 in words is "twelve billion, two hundred ten million, forty-three thousand, thirty-one".