12303031122 has 12 divisors (see below), whose sum is σ = 26656567470. Its totient is φ = 4101010368.

The previous prime is 12303031073. The next prime is 12303031133. The reversal of 12303031122 is 22113030321.

It can be written as a sum of positive squares in only one way, i.e., 12303024561 + 6561 = 110919^2 + 81^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 683501729 = 12303031122 / (1 + 2 + 3 + 0 + 3 + 0 + 3 + 1 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12303031095 and 12303031104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341750847 + ... + 341750882.

Almost surely, 2^12303031122 is an apocalyptic number.

12303031122 is an abundant number, since it is smaller than the sum of its proper divisors (14353536348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12303031122 is a wasteful number, since it uses less digits than its factorization.

12303031122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683501737 (or 683501734 counting only the distinct ones).

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

Adding to 12303031122 its reverse (22113030321), we get a palindrome (34416061443).

The spelling of 12303031122 in words is "twelve billion, three hundred three million, thirty-one thousand, one hundred twenty-two".