12231311001 has 64 divisors (see below), whose sum is σ = 20706835968. Its totient is φ = 6249166848.

The previous prime is 12231310951. The next prime is 12231311021. The reversal of 12231311001 is 10011313221.

It is a happy number.

It is not a de Polignac number, because 12231311001 - 2¹¹ = 12231308953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12231311021) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 2350935 + ... + 2356131.

It is an arithmetic number, because the mean of its divisors is an integer number (323544312).

Almost surely, 2^12231311001 is an apocalyptic number.

It is an amenable number.

12231311001 is a deficient number, since it is larger than the sum of its proper divisors (8475524967).

12231311001 is a wasteful number, since it uses less digits than its factorization.

12231311001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12231311001 its reverse (10011313221), we get a palindrome (22242624222).

The spelling of 12231311001 in words is "twelve billion, two hundred thirty-one million, three hundred eleven thousand, one".