111143214331 has 4 divisors (see below), whose sum is σ = 111394102392. Its totient is φ = 110892326272.

The previous prime is 111143214317. The next prime is 111143214367. The reversal of 111143214331 is 133412341111.

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-111143214331 is a prime.

It is a super-2 number, since 2×111143214331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111143214296 and 111143214305.

It is not an unprimeable number, because it can be changed into a prime (111143214311) 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, 125443366 + ... + 125444251.

It is an arithmetic number, because the mean of its divisors is an integer number (27848525598).

Almost surely, 2^111143214331 is an apocalyptic number.

111143214331 is a deficient number, since it is larger than the sum of its proper divisors (250888061).

111143214331 is an equidigital number, since it uses as much as digits as its factorization.

111143214331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250888060.

The product of its digits is 864, while the sum is 25.

Adding to 111143214331 its reverse (133412341111), we get a palindrome (244555555442).

The spelling of 111143214331 in words is "one hundred eleven billion, one hundred forty-three million, two hundred fourteen thousand, three hundred thirty-one".