1200321023111 has 8 divisors (see below), whose sum is σ = 1372893780000. Its totient is φ = 1028022847488.

The previous prime is 1200321023029. The next prime is 1200321023123. The reversal of 1200321023111 is 1113201230021.

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

It is not a de Polignac number, because 1200321023111 - 2¹⁴ = 1200321006727 is a prime.

It is a super-2 number, since 2×1200321023111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200321023111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200321023171) 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, 68635946 + ... + 68653431.

It is an arithmetic number, because the mean of its divisors is an integer number (171611722500).

Almost surely, 2^{1200321023111} is an apocalyptic number.

1200321023111 is a deficient number, since it is larger than the sum of its proper divisors (172572756889).

1200321023111 is a wasteful number, since it uses less digits than its factorization.

1200321023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137290633.

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

Adding to 1200321023111 its reverse (1113201230021), we get a palindrome (2313522253132).

The spelling of 1200321023111 in words is "one trillion, two hundred billion, three hundred twenty-one million, twenty-three thousand, one hundred eleven".