1200123111230 has 8 divisors (see below), whose sum is σ = 2160221600232. Its totient is φ = 480049244488.

The previous prime is 1200123111223. The next prime is 1200123111241. The reversal of 1200123111230 is 321113210021.

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

It is a super-2 number, since 2×1200123111230² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200123111199 and 1200123111208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60006155552 + ... + 60006155571.

It is an arithmetic number, because the mean of its divisors is an integer number (270027700029).

Almost surely, 2^{1200123111230} is an apocalyptic number.

1200123111230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200123111230 is a deficient number, since it is larger than the sum of its proper divisors (960098489002).

1200123111230 is a wasteful number, since it uses less digits than its factorization.

1200123111230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120012311130.

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

Adding to 1200123111230 its reverse (321113210021), we get a palindrome (1521236321251).

The spelling of 1200123111230 in words is "one trillion, two hundred billion, one hundred twenty-three million, one hundred eleven thousand, two hundred thirty".