12132423122 has 16 divisors (see below), whose sum is σ = 18930202200. Its totient is φ = 5824667520.

The previous prime is 12132423113. The next prime is 12132423143. The reversal of 12132423122 is 22132423121.

It can be written as a sum of positive squares in 4 ways, for example, as 10818288121 + 1314135001 = 104011^2 + 36251^2 .

It is a super-2 number, since 2×12132423122² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567347 + ... + 588342.

Almost surely, 2^12132423122 is an apocalyptic number.

12132423122 is a deficient number, since it is larger than the sum of its proper divisors (6797779078).

12132423122 is a wasteful number, since it uses less digits than its factorization.

12132423122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155901.

The product of its digits is 1152, while the sum is 23.

Adding to 12132423122 its reverse (22132423121), we get a palindrome (34264846243).

Subtracting 12132423122 from its reverse (22132423121), we obtain a palindrome (9999999999).

The spelling of 12132423122 in words is "twelve billion, one hundred thirty-two million, four hundred twenty-three thousand, one hundred twenty-two".