12311002231 has 8 divisors (see below), whose sum is σ = 13436512128. Its totient is φ = 11186547000.

The previous prime is 12311002201. The next prime is 12311002237. The reversal of 12311002231 is 13220011321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12311002231 - 2¹³ = 12310994039 is a prime.

It is a super-2 number, since 2×12311002231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311002237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239155 + ... + 286036.

It is an arithmetic number, because the mean of its divisors is an integer number (1679564016).

Almost surely, 2^12311002231 is an apocalyptic number.

12311002231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12311002231 is a deficient number, since it is larger than the sum of its proper divisors (1125509897).

12311002231 is a wasteful number, since it uses less digits than its factorization.

12311002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527333.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12311002231 its reverse (13220011321), we get a palindrome (25531013552).

The spelling of 12311002231 in words is "twelve billion, three hundred eleven million, two thousand, two hundred thirty-one".