11020120102111 has 4 divisors (see below), whose sum is σ = 11020735459800. Its totient is φ = 11019504744424.

The previous prime is 11020120101989. The next prime is 11020120102129. The reversal of 11020120102111 is 11120102102011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11020120102111 - 2¹⁷ = 11020119971039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020120102091 and 11020120102100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020120102151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307651981 + ... + 307687798.

It is an arithmetic number, because the mean of its divisors is an integer number (2755183864950).

Almost surely, 2^{11020120102111} is an apocalyptic number.

11020120102111 is a deficient number, since it is larger than the sum of its proper divisors (615357689).

11020120102111 is an equidigital number, since it uses as much as digits as its factorization.

11020120102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615357688.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11020120102111 its reverse (11120102102011), we get a palindrome (22140222204122).

The spelling of 11020120102111 in words is "eleven trillion, twenty billion, one hundred twenty million, one hundred two thousand, one hundred eleven".