12240321134 has 4 divisors (see below), whose sum is σ = 18360481704. Its totient is φ = 6120160566.

The previous prime is 12240321109. The next prime is 12240321157. The reversal of 12240321134 is 43112304221.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12240321134² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060080282 + ... + 3060080285.

It is an arithmetic number, because the mean of its divisors is an integer number (4590120426).

Almost surely, 2^12240321134 is an apocalyptic number.

12240321134 is a deficient number, since it is larger than the sum of its proper divisors (6120160570).

12240321134 is an equidigital number, since it uses as much as digits as its factorization.

12240321134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120160569.

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

Adding to 12240321134 its reverse (43112304221), we get a palindrome (55352625355).

The spelling of 12240321134 in words is "twelve billion, two hundred forty million, three hundred twenty-one thousand, one hundred thirty-four".