1211110320011 has 8 divisors (see below), whose sum is σ = 1229554071360. Its totient is φ = 1192677376968.

The previous prime is 1211110319899. The next prime is 1211110320023. The reversal of 1211110320011 is 1100230111121.

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 1211110320011 - 2³⁰ = 1210036578187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211110320031) 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, 2476121 + ... + 2924618.

It is an arithmetic number, because the mean of its divisors is an integer number (153694258920).

Almost surely, 2^{1211110320011} is an apocalyptic number.

1211110320011 is a deficient number, since it is larger than the sum of its proper divisors (18443751349).

1211110320011 is an equidigital number, since it uses as much as digits as its factorization.

1211110320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5404153.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1211110320011 its reverse (1100230111121), we get a palindrome (2311340431132).

The spelling of 1211110320011 in words is "one trillion, two hundred eleven billion, one hundred ten million, three hundred twenty thousand, eleven".