111201331311 has 48 divisors (see below), whose sum is σ = 195355727424. Its totient is φ = 59502062592.

The previous prime is 111201331303. The next prime is 111201331333. The reversal of 111201331311 is 113133102111.

111201331311 is a `hidden beast` number, since 1 + 1 + 1 + 20 + 1 + 331 + 311 = 666.

It is not a de Polignac number, because 111201331311 - 2³ = 111201331303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201331301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52540 + ... + 474513.

It is an arithmetic number, because the mean of its divisors is an integer number (4069910988).

Almost surely, 2^111201331311 is an apocalyptic number.

111201331311 is a deficient number, since it is larger than the sum of its proper divisors (84154396113).

111201331311 is a wasteful number, since it uses less digits than its factorization.

111201331311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527280 (or 527277 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111201331311 its reverse (113133102111), we get a palindrome (224334433422).

It can be divided in two parts, 11120 and 1331311, that added together give a palindrome (1342431).

The spelling of 111201331311 in words is "one hundred eleven billion, two hundred one million, three hundred thirty-one thousand, three hundred eleven".