11111111011010 has 16 divisors (see below), whose sum is σ = 20053619129016. Its totient is φ = 4432529002368.

The previous prime is 11111111010997. The next prime is 11111111011037. The reversal of 11111111011010 is 1011011111111.

It can be written as a sum of positive squares in 4 ways, for example, as 10790430044641 + 320680966369 = 3284879^2 + 566287^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11111111010982 and 11111111011000.

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, 1489421339 + ... + 1489428798.

Almost surely, 2^{11111111011010} is an apocalyptic number.

11111111011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111111011010 is a deficient number, since it is larger than the sum of its proper divisors (8942508118006).

11111111011010 is a wasteful number, since it uses less digits than its factorization.

11111111011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978850517.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 11111111011010 its reverse (1011011111111), we get a palindrome (12122122122121).

The spelling of 11111111011010 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, eleven thousand, ten".