1081111802 has 16 divisors (see below), whose sum is σ = 1628354112. Its totient is φ = 538332480.

The previous prime is 1081111771. The next prime is 1081111847. The reversal of 1081111802 is 2081111801.

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, 836777 + ... + 838067.

It is an arithmetic number, because the mean of its divisors is an integer number (101772132).

Almost surely, 2^1081111802 is an apocalyptic number.

1081111802 is a deficient number, since it is larger than the sum of its proper divisors (547242310).

1081111802 is a wasteful number, since it uses less digits than its factorization.

1081111802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693.

The product of its (nonzero) digits is 128, while the sum is 23.

The square root of 1081111802 is about 32880.2646278889. The cubic root of 1081111802 is about 1026.3375129452.

Subtracting 1081111802 from its reverse (2081111801), we obtain a palindrome (999999999).

The spelling of 1081111802 in words is "one billion, eighty-one million, one hundred eleven thousand, eight hundred two".