111101401331 has 4 divisors (see below), whose sum is σ = 111493986072. Its totient is φ = 110708816592.

The previous prime is 111101401289. The next prime is 111101401351. The reversal of 111101401331 is 133104101111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111101401331 is a prime.

It is a super-2 number, since 2×111101401331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111101401351) 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, 196291946 + ... + 196292511.

It is an arithmetic number, because the mean of its divisors is an integer number (27873496518).

Almost surely, 2^111101401331 is an apocalyptic number.

111101401331 is a deficient number, since it is larger than the sum of its proper divisors (392584741).

111101401331 is an equidigital number, since it uses as much as digits as its factorization.

111101401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392584740.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 111101401331 its reverse (133104101111), we get a palindrome (244205502442).

The spelling of 111101401331 in words is "one hundred eleven billion, one hundred one million, four hundred one thousand, three hundred thirty-one".