11020120111011 has 32 divisors (see below), whose sum is σ = 16582637491200. Its totient is φ = 6448306798080.

The previous prime is 11020120110919. The next prime is 11020120111043. The reversal of 11020120111011 is 11011102102011.

It is not a de Polignac number, because 11020120111011 - 2²⁵ = 11020086556579 is a prime.

It is a super-2 number, since 2×11020120111011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11020120111051) 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, 26298150 + ... + 26713908.

It is an arithmetic number, because the mean of its divisors is an integer number (518207421600).

Almost surely, 2^{11020120111011} is an apocalyptic number.

11020120111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11020120111011 is a deficient number, since it is larger than the sum of its proper divisors (5562517380189).

11020120111011 is a wasteful number, since it uses less digits than its factorization.

11020120111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443499.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11020120111011 its reverse (11011102102011), we get a palindrome (22031222213022).

The spelling of 11020120111011 in words is "eleven trillion, twenty billion, one hundred twenty million, one hundred eleven thousand, eleven".