1100020112111 has 4 divisors (see below), whose sum is σ = 1100046488424. Its totient is φ = 1099993735800.

The previous prime is 1100020112101. The next prime is 1100020112161. The reversal of 1100020112111 is 1112110200011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100020112111 is a prime.

It is a super-3 number, since 3×1100020112111³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100020112092 and 1100020112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100020112101) 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, 13125500 + ... + 13209041.

It is an arithmetic number, because the mean of its divisors is an integer number (275011622106).

Almost surely, 2^{1100020112111} is an apocalyptic number.

1100020112111 is a deficient number, since it is larger than the sum of its proper divisors (26376313).

1100020112111 is an equidigital number, since it uses as much as digits as its factorization.

1100020112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26376312.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1100020112111 its reverse (1112110200011), we get a palindrome (2212130312122).

The spelling of 1100020112111 in words is "one trillion, one hundred billion, twenty million, one hundred twelve thousand, one hundred eleven".