12123111302000 has 40 divisors (see below), whose sum is σ = 29313683133072. Its totient is φ = 4849244520000.

The previous prime is 12123111301967. The next prime is 12123111302017. The reversal of 12123111302000 is 20311132121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 12123111302000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3030775826 + ... + 3030779825.

Almost surely, 2^{12123111302000} is an apocalyptic number.

12123111302000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12123111302000 is an abundant number, since it is smaller than the sum of its proper divisors (17190571831072).

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

12123111302000 is an equidigital number, since it uses as much as digits as its factorization.

12123111302000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061555674 (or 6061555658 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12123111302000 its reverse (20311132121), we get a palindrome (12143422434121).

The spelling of 12123111302000 in words is "twelve trillion, one hundred twenty-three billion, one hundred eleven million, three hundred two thousand".