111275481379 has 2 divisors, whose sum is σ = 111275481380. Its totient is φ = 111275481378.

The previous prime is 111275481347. The next prime is 111275481397. The reversal of 111275481379 is 973184572111.

It is a happy number.

Together with next prime (111275481397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (973184572111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111275481379 - 2⁵ = 111275481347 is a prime.

It is a super-2 number, since 2×111275481379² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111275481329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55637740689 + 55637740690.

It is an arithmetic number, because the mean of its divisors is an integer number (55637740690).

Almost surely, 2^111275481379 is an apocalyptic number.

111275481379 is a deficient number, since it is larger than the sum of its proper divisors (1).

111275481379 is an equidigital number, since it uses as much as digits as its factorization.

111275481379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 49.

The spelling of 111275481379 in words is "one hundred eleven billion, two hundred seventy-five million, four hundred eighty-one thousand, three hundred seventy-nine".