1123123826111 has 32 divisors (see below), whose sum is σ = 1344064071168. Its totient is φ = 918350110080.

The previous prime is 1123123826057. The next prime is 1123123826119. The reversal of 1123123826111 is 1116283213211.

It is a cyclic number.

It is not a de Polignac number, because 1123123826111 - 2⁶ = 1123123826047 is a prime.

It is a super-2 number, since 2×1123123826111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123123826119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20329556 + ... + 20384726.

It is an arithmetic number, because the mean of its divisors is an integer number (42002002224).

Almost surely, 2^{1123123826111} is an apocalyptic number.

1123123826111 is a deficient number, since it is larger than the sum of its proper divisors (220940245057).

1123123826111 is a wasteful number, since it uses less digits than its factorization.

1123123826111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56751.

The product of its digits is 3456, while the sum is 32.

The spelling of 1123123826111 in words is "one trillion, one hundred twenty-three billion, one hundred twenty-three million, eight hundred twenty-six thousand, one hundred eleven".