11111010111010 has 128 divisors (see below), whose sum is σ = 21326834995200. Its totient is φ = 4160346624000.

The previous prime is 11111010110939. The next prime is 11111010111043. The reversal of 11111010111010 is 1011101011111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1317871495 + ... + 1317879925.

It is an arithmetic number, because the mean of its divisors is an integer number (166615898400).

Almost surely, 2^{11111010111010} is an apocalyptic number.

11111010111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111010111010 is a deficient number, since it is larger than the sum of its proper divisors (10215824884190).

11111010111010 is a wasteful number, since it uses less digits than its factorization.

11111010111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9188.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 11111010111010 its reverse (1011101011111), we get a palindrome (12122111122121).

It can be divided in two parts, 111110101 and 11010, that added together give a palindrome (111121111).

The spelling of 11111010111010 in words is "eleven trillion, one hundred eleven billion, ten million, one hundred eleven thousand, ten".