111111011011010 has 16 divisors (see below), whose sum is σ = 201273704025336. Its totient is φ = 44161319025408.

The previous prime is 111111011011003. The next prime is 111111011011027. The reversal of 111111011011010 is 10110110111111.

It can be written as a sum of positive squares in 4 ways, for example, as 42655228023409 + 68455782987601 = 6531097^2 + 8273801^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111111011010982 and 111111011011000.

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, 35385670727 + ... + 35385673866.

Almost surely, 2^{111111011011010} is an apocalyptic number.

111111011011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111111011011010 is a deficient number, since it is larger than the sum of its proper divisors (90162693014326).

111111011011010 is a wasteful number, since it uses less digits than its factorization.

111111011011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70771344757.

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

Adding to 111111011011010 its reverse (10110110111111), we get a palindrome (121221121122121).

The spelling of 111111011011010 in words is "one hundred eleven trillion, one hundred eleven billion, eleven million, eleven thousand, ten".