111010121101011 has 32 divisors (see below), whose sum is σ = 163072602959616. Its totient is φ = 66610842480000.

The previous prime is 111010121100929. The next prime is 111010121101021. The reversal of 111010121101011 is 110101121010111.

It is not a de Polignac number, because 111010121101011 - 2¹⁵ = 111010121068243 is a prime.

It is a super-2 number, since 2×111010121101011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111010121101021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121656576 + ... + 122565666.

It is an arithmetic number, because the mean of its divisors is an integer number (5096018842488).

Almost surely, 2^{111010121101011} is an apocalyptic number.

111010121101011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111010121101011 is a deficient number, since it is larger than the sum of its proper divisors (52062481858605).

111010121101011 is a wasteful number, since it uses less digits than its factorization.

111010121101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945843.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 111010121101011 its reverse (110101121010111), we get a palindrome (221111242111122).

The spelling of 111010121101011 in words is "one hundred eleven trillion, ten billion, one hundred twenty-one million, one hundred one thousand, eleven".