1200023101321 has 8 divisors (see below), whose sum is σ = 1309124333664. Its totient is φ = 1090923239520.

The previous prime is 1200023101309. The next prime is 1200023101351. The reversal of 1200023101321 is 1231013200021.

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 1200023101321 - 2²⁷ = 1199888883593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200023101295 and 1200023101304.

It is not an unprimeable number, because it can be changed into a prime (1200023101351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2549770 + ... + 2983516.

It is an arithmetic number, because the mean of its divisors is an integer number (163640541708).

Almost surely, 2^{1200023101321} is an apocalyptic number.

1200023101321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200023101321 is a deficient number, since it is larger than the sum of its proper divisors (109101232343).

1200023101321 is a wasteful number, since it uses less digits than its factorization.

1200023101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685271.

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

Adding to 1200023101321 its reverse (1231013200021), we get a palindrome (2431036301342).

The spelling of 1200023101321 in words is "one trillion, two hundred billion, twenty-three million, one hundred one thousand, three hundred twenty-one".