11012120120111 has 12 divisors (see below), whose sum is σ = 12140148851376. Its totient is φ = 9981311968320.

The previous prime is 11012120120081. The next prime is 11012120120143. The reversal of 11012120120111 is 11102102121011.

It is not a de Polignac number, because 11012120120111 - 2⁶ = 11012120120047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012120120161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134987795 + ... + 135069348.

It is an arithmetic number, because the mean of its divisors is an integer number (1011679070948).

Almost surely, 2^{11012120120111} is an apocalyptic number.

11012120120111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11012120120111 is a deficient number, since it is larger than the sum of its proper divisors (1128028731265).

11012120120111 is a wasteful number, since it uses less digits than its factorization.

11012120120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270057502 (or 270057491 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11012120120111 its reverse (11102102121011), we get a palindrome (22114222241122).

Subtracting 11012120120111 from its reverse (11102102121011), we obtain a square (89982000900 = 299970²).

The spelling of 11012120120111 in words is "eleven trillion, twelve billion, one hundred twenty million, one hundred twenty thousand, one hundred eleven".