1011111011011 has 16 divisors (see below), whose sum is σ = 1039885959168. Its totient is φ = 982534017600.

The previous prime is 1011111010997. The next prime is 1011111011021. The reversal of 1011111011011 is 1101101111101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1011111011011 - 2³³ = 1002521076419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011111011021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47577790 + ... + 47599036.

It is an arithmetic number, because the mean of its divisors is an integer number (64992872448).

Almost surely, 2^{1011111011011} is an apocalyptic number.

1011111011011 is a deficient number, since it is larger than the sum of its proper divisors (28774948157).

1011111011011 is a wasteful number, since it uses less digits than its factorization.

1011111011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25842.

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

Adding to 1011111011011 its reverse (1101101111101), we get a palindrome (2112212122112).

The spelling of 1011111011011 in words is "one trillion, eleven billion, one hundred eleven million, eleven thousand, eleven".