111321320211 has 24 divisors (see below), whose sum is σ = 161087584944. Its totient is φ = 74080431360.

The previous prime is 111321320161. The next prime is 111321320219. The reversal of 111321320211 is 112023123111.

111321320211 is a `hidden beast` number, since 1 + 1 + 1 + 321 + 320 + 21 + 1 = 666.

It is not a de Polignac number, because 111321320211 - 2¹³ = 111321312019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111321320219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15507255 + ... + 15514431.

It is an arithmetic number, because the mean of its divisors is an integer number (6711982706).

Almost surely, 2^111321320211 is an apocalyptic number.

111321320211 is a deficient number, since it is larger than the sum of its proper divisors (49766264733).

111321320211 is a wasteful number, since it uses less digits than its factorization.

111321320211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051 (or 10048 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111321320211 its reverse (112023123111), we get a palindrome (223344443322).

The spelling of 111321320211 in words is "one hundred eleven billion, three hundred twenty-one million, three hundred twenty thousand, two hundred eleven".