1081111801 has 8 divisors (see below), whose sum is σ = 1347879744. Its totient is φ = 842424720.

The previous prime is 1081111771. The next prime is 1081111847.

1081111801 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 1081111801 - 2¹¹ = 1081109753 is a prime.

It is a super-2 number, since 2×1081111801² = 2337605452522927202, which contains 22 as substring.

1081111801 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081111301) 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, 7020130 + ... + 7020283.

It is an arithmetic number, because the mean of its divisors is an integer number (168484968).

Almost surely, 2^1081111801 is an apocalyptic number.

1081111801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1081111801 is a deficient number, since it is larger than the sum of its proper divisors (266767943).

1081111801 is a wasteful number, since it uses less digits than its factorization.

1081111801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14040431.

The product of its (nonzero) digits is 64, while the sum is 22.

The square root of 1081111801 is about 32880.2646126822. The cubic root of 1081111801 is about 1026.3375126287.

The spelling of 1081111801 in words is "one billion, eighty-one million, one hundred eleven thousand, eight hundred one".