1080001111 has 6 divisors (see below), whose sum is σ = 1256327880. Its totient is φ = 925715196.

The previous prime is 1080001099. The next prime is 1080001129. The reversal of 1080001111 is 1111000801.

It is a de Polignac number, because none of the positive numbers 2^k-1080001111 is a prime.

It is a super-2 number, since 2×1080001111² = 2332804799522468642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1080001091 and 1080001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080002111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11020371 + ... + 11020468.

It is an arithmetic number, because the mean of its divisors is an integer number (209387980).

Almost surely, 2^1080001111 is an apocalyptic number.

1080001111 is a deficient number, since it is larger than the sum of its proper divisors (176326769).

1080001111 is an equidigital number, since it uses as much as digits as its factorization.

1080001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22040853 (or 22040846 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

The square root of 1080001111 is about 32863.3703536323. The cubic root of 1080001111 is about 1025.9859198176.

Adding to 1080001111 its reverse (1111000801), we get a palindrome (2191001912).

The spelling of 1080001111 in words is "one billion, eighty million, one thousand, one hundred eleven".