1011110001123 has 16 divisors (see below), whose sum is σ = 1377519242400. Its totient is φ = 659459933184.

The previous prime is 1011110001071. The next prime is 1011110001163. The reversal of 1011110001123 is 3211000111101.

It is not a de Polignac number, because 1011110001123 - 2⁶ = 1011110001059 is a prime.

It is a super-2 number, since 2×1011110001123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011110001099 and 1011110001108.

It is not an unprimeable number, because it can be changed into a prime (1011110001163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9055086 + ... + 9166067.

It is an arithmetic number, because the mean of its divisors is an integer number (86094952650).

Almost surely, 2^{1011110001123} is an apocalyptic number.

1011110001123 is a deficient number, since it is larger than the sum of its proper divisors (366409241277).

1011110001123 is a wasteful number, since it uses less digits than its factorization.

1011110001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18221558.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 1011110001123 its reverse (3211000111101), we get a palindrome (4222110112224).

The spelling of 1011110001123 in words is "one trillion, eleven billion, one hundred ten million, one thousand, one hundred twenty-three".