12162321134 has 16 divisors (see below), whose sum is σ = 18834667776. Its totient is φ = 5885820000.

The previous prime is 12162321131. The next prime is 12162321151. The reversal of 12162321134 is 43112326121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162321131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416117 + ... + 444384.

It is an arithmetic number, because the mean of its divisors is an integer number (1177166736).

Almost surely, 2^12162321134 is an apocalyptic number.

12162321134 is a deficient number, since it is larger than the sum of its proper divisors (6672346642).

12162321134 is a wasteful number, since it uses less digits than its factorization.

12162321134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860731.

The product of its digits is 1728, while the sum is 26.

Adding to 12162321134 its reverse (43112326121), we get a palindrome (55274647255).

The spelling of 12162321134 in words is "twelve billion, one hundred sixty-two million, three hundred twenty-one thousand, one hundred thirty-four".