1122111123 has 64 divisors (see below), whose sum is σ = 1864704000. Its totient is φ = 598631040.

The previous prime is 1122111121. The next prime is 1122111169. The reversal of 1122111123 is 3211112211.

It is not a de Polignac number, because 1122111123 - 2¹ = 1122111121 is a prime.

It is a super-2 number, since 2×1122111123² = 2518266744720642258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1122111121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 924465 + ... + 925677.

It is an arithmetic number, because the mean of its divisors is an integer number (29136000).

Almost surely, 2^1122111123 is an apocalyptic number.

1122111123 is a deficient number, since it is larger than the sum of its proper divisors (742592877).

1122111123 is a wasteful number, since it uses less digits than its factorization.

1122111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297 (or 1283 counting only the distinct ones).

The product of its digits is 24, while the sum is 15.

The square root of 1122111123 is about 33497.9271448249. The cubic root of 1122111123 is about 1039.1509104532.

Adding to 1122111123 its reverse (3211112211), we get a palindrome (4333223334).

The spelling of 1122111123 in words is "one billion, one hundred twenty-two million, one hundred eleven thousand, one hundred twenty-three".