111442643654271 has 8 divisors (see below), whose sum is σ = 148617321411504. Its totient is φ = 74281530833280.

The previous prime is 111442643654269. The next prime is 111442643654299. The reversal of 111442643654271 is 172456346244111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111442643654271 - 2¹ = 111442643654269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111442643659271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3391214890 + ... + 3391247751.

It is an arithmetic number, because the mean of its divisors is an integer number (18577165176438).

Almost surely, 2^{111442643654271} is an apocalyptic number.

111442643654271 is a deficient number, since it is larger than the sum of its proper divisors (37174677757233).

111442643654271 is an equidigital number, since it uses as much as digits as its factorization.

111442643654271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6782468121.

The product of its digits is 3870720, while the sum is 51.

Adding to 111442643654271 its reverse (172456346244111), we get a palindrome (283898989898382).

The spelling of 111442643654271 in words is "one hundred eleven trillion, four hundred forty-two billion, six hundred forty-three million, six hundred fifty-four thousand, two hundred seventy-one".