1111371223665 has 8 divisors (see below), whose sum is σ = 1778193957888. Its totient is φ = 592731319280.

The previous prime is 1111371223649. The next prime is 1111371223691. The reversal of 1111371223665 is 5663221731111.

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

It is not a de Polignac number, because 1111371223665 - 2⁴ = 1111371223649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37045707441 + ... + 37045707470.

It is an arithmetic number, because the mean of its divisors is an integer number (222274244736).

Almost surely, 2^{1111371223665} is an apocalyptic number.

1111371223665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111371223665 is a deficient number, since it is larger than the sum of its proper divisors (666822734223).

1111371223665 is an equidigital number, since it uses as much as digits as its factorization.

1111371223665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74091414919.

The product of its digits is 45360, while the sum is 39.

Adding to 1111371223665 its reverse (5663221731111), we get a palindrome (6774592954776).

The spelling of 1111371223665 in words is "one trillion, one hundred eleven billion, three hundred seventy-one million, two hundred twenty-three thousand, six hundred sixty-five".