1111012231011 has 4 divisors (see below), whose sum is σ = 1481349641352. Its totient is φ = 740674820672.

The previous prime is 1111012230983. The next prime is 1111012231027. The reversal of 1111012231011 is 1101322101111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111012231011 - 2¹⁵ = 1111012198243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111012231061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185168705166 + ... + 185168705171.

It is an arithmetic number, because the mean of its divisors is an integer number (370337410338).

Almost surely, 2^{1111012231011} is an apocalyptic number.

1111012231011 is a deficient number, since it is larger than the sum of its proper divisors (370337410341).

1111012231011 is an equidigital number, since it uses as much as digits as its factorization.

1111012231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370337410340.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1111012231011 its reverse (1101322101111), we get a palindrome (2212334332122).

The spelling of 1111012231011 in words is "one trillion, one hundred eleven billion, twelve million, two hundred thirty-one thousand, eleven".