1011120112111 has 4 divisors (see below), whose sum is σ = 1014034003272. Its totient is φ = 1008206220952.

The previous prime is 1011120112063. The next prime is 1011120112147. The reversal of 1011120112111 is 1112110211101.

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-1011120112111 is a prime.

It is a super-2 number, since 2×1011120112111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011120112091 and 1011120112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011120112511) 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, 1456945060 + ... + 1456945753.

It is an arithmetic number, because the mean of its divisors is an integer number (253508500818).

Almost surely, 2^{1011120112111} is an apocalyptic number.

1011120112111 is a deficient number, since it is larger than the sum of its proper divisors (2913891161).

1011120112111 is an equidigital number, since it uses as much as digits as its factorization.

1011120112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913891160.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1011120112111 its reverse (1112110211101), we get a palindrome (2123230323212).

The spelling of 1011120112111 in words is "one trillion, eleven billion, one hundred twenty million, one hundred twelve thousand, one hundred eleven".