111310321011 has 4 divisors (see below), whose sum is σ = 148413761352. Its totient is φ = 74206880672.

The previous prime is 111310321009. The next prime is 111310321013. The reversal of 111310321011 is 110123013111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110123013111 = 3 ⋅36707671037.

It is an interprime number because it is at equal distance from previous prime (111310321009) and next prime (111310321013).

It is a cyclic number.

It is not a de Polignac number, because 111310321011 - 2¹ = 111310321009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111310321013) 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, 18551720166 + ... + 18551720171.

It is an arithmetic number, because the mean of its divisors is an integer number (37103440338).

Almost surely, 2^111310321011 is an apocalyptic number.

111310321011 is a deficient number, since it is larger than the sum of its proper divisors (37103440341).

111310321011 is an equidigital number, since it uses as much as digits as its factorization.

111310321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37103440340.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 111310321011 its reverse (110123013111), we get a palindrome (221433334122).

The spelling of 111310321011 in words is "one hundred eleven billion, three hundred ten million, three hundred twenty-one thousand, eleven".