12111000231000 has 192 divisors, whose sum is σ = 41533725673440. Its totient is φ = 2935999968000.

The previous prime is 12111000230999. The next prime is 12111000231007. The reversal of 12111000231000 is 13200011121.

It is a super-2 number, since 2×12111000231000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111000231007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16318819 + ... + 17044818.

Almost surely, 2^{12111000231000} is an apocalyptic number.

12111000231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111000231000 is an abundant number, since it is smaller than the sum of its proper divisors (29422725442440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111000231000 is a wasteful number, since it uses less digits than its factorization.

12111000231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33363683 (or 33363658 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12111000231000 its reverse (13200011121), we get a palindrome (12124200242121).

The spelling of 12111000231000 in words is "twelve trillion, one hundred eleven billion, two hundred thirty-one thousand".