1200023220011 has 8 divisors (see below), whose sum is σ = 1496132845824. Its totient is φ = 935083028520.

The previous prime is 1200023219959. The next prime is 1200023220041. The reversal of 1200023220011 is 1100223200021.

It is a happy number.

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 1200023220011 - 2¹⁴ = 1200023203627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200023220041) 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, 7792358495 + ... + 7792358648.

It is an arithmetic number, because the mean of its divisors is an integer number (187016605728).

Almost surely, 2^{1200023220011} is an apocalyptic number.

1200023220011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200023220011 is a deficient number, since it is larger than the sum of its proper divisors (296109625813).

1200023220011 is a wasteful number, since it uses less digits than its factorization.

1200023220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15584717161.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1200023220011 its reverse (1100223200021), we get a palindrome (2300246420032).

The spelling of 1200023220011 in words is "one trillion, two hundred billion, twenty-three million, two hundred twenty thousand, eleven".