12102003231 has 32 divisors (see below), whose sum is σ = 17807781888. Its totient is φ = 7277022720.

The previous prime is 12102003217. The next prime is 12102003247. The reversal of 12102003231 is 13230020121.

It is not a de Polignac number, because 12102003231 - 2²² = 12097808927 is a prime.

It is a super-2 number, since 2×12102003231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12102003231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102003281) 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 31 ways as a sum of consecutive naturals, for example, 125685 + ... + 200001.

It is an arithmetic number, because the mean of its divisors is an integer number (556493184).

Almost surely, 2^12102003231 is an apocalyptic number.

12102003231 is a deficient number, since it is larger than the sum of its proper divisors (5705778657).

12102003231 is a wasteful number, since it uses less digits than its factorization.

12102003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74471.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12102003231 its reverse (13230020121), we get a palindrome (25332023352).

The spelling of 12102003231 in words is "twelve billion, one hundred two million, three thousand, two hundred thirty-one".