12432213137 has 2 divisors, whose sum is σ = 12432213138. Its totient is φ = 12432213136.

The previous prime is 12432213089. The next prime is 12432213149. The reversal of 12432213137 is 73131223421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7721312641 + 4710900496 = 87871^2 + 68636^2 .

It is a cyclic number.

It is not a de Polignac number, because 12432213137 - 2¹⁰ = 12432212113 is a prime.

It is not a weakly prime, because it can be changed into another prime (12432210137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6216106568 + 6216106569.

It is an arithmetic number, because the mean of its divisors is an integer number (6216106569).

Almost surely, 2^12432213137 is an apocalyptic number.

It is an amenable number.

12432213137 is a deficient number, since it is larger than the sum of its proper divisors (1).

12432213137 is an equidigital number, since it uses as much as digits as its factorization.

12432213137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

Adding to 12432213137 its reverse (73131223421), we get a palindrome (85563436558).

The spelling of 12432213137 in words is "twelve billion, four hundred thirty-two million, two hundred thirteen thousand, one hundred thirty-seven".