12200123031 has 4 divisors (see below), whose sum is σ = 16266830712. Its totient is φ = 8133415352.

The previous prime is 12200123027. The next prime is 12200123051. The reversal of 12200123031 is 13032100221.

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 12200123031 - 2² = 12200123027 is a prime.

It is a super-2 number, since 2×12200123031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12200123031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200123011) 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, 2033353836 + ... + 2033353841.

It is an arithmetic number, because the mean of its divisors is an integer number (4066707678).

Almost surely, 2^12200123031 is an apocalyptic number.

12200123031 is a deficient number, since it is larger than the sum of its proper divisors (4066707681).

12200123031 is an equidigital number, since it uses as much as digits as its factorization.

12200123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066707680.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12200123031 its reverse (13032100221), we get a palindrome (25232223252).

The spelling of 12200123031 in words is "twelve billion, two hundred million, one hundred twenty-three thousand, thirty-one".