111201012311 has 4 divisors (see below), whose sum is σ = 112767223824. Its totient is φ = 109634800800.

The previous prime is 111201012301. The next prime is 111201012313. The reversal of 111201012311 is 113210102111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113210102111 = 49831 ⋅2271881.

It is a cyclic number.

It is not a de Polignac number, because 111201012311 - 2¹⁰ = 111201011287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201012313) 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, 783105650 + ... + 783105791.

It is an arithmetic number, because the mean of its divisors is an integer number (28191805956).

Almost surely, 2^111201012311 is an apocalyptic number.

111201012311 is a deficient number, since it is larger than the sum of its proper divisors (1566211513).

111201012311 is an equidigital number, since it uses as much as digits as its factorization.

111201012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566211512.

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

Adding to 111201012311 its reverse (113210102111), we get a palindrome (224411114422).

The spelling of 111201012311 in words is "one hundred eleven billion, two hundred one million, twelve thousand, three hundred eleven".