1123106211 has 12 divisors (see below), whose sum is σ = 1627805088. Its totient is φ = 746180304.

The previous prime is 1123106203. The next prime is 1123106221. The reversal of 1123106211 is 1126013211.

1123106211 is a `hidden beast` number, since 1 + 12 + 31 + 0 + 621 + 1 = 666.

It is not a de Polignac number, because 1123106211 - 2³ = 1123106203 is a prime.

It is a super-2 number, since 2×1123106211² = 2522735122373553042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123106221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210315 + ... + 215588.

It is an arithmetic number, because the mean of its divisors is an integer number (135650424).

Almost surely, 2^1123106211 is an apocalyptic number.

1123106211 is a deficient number, since it is larger than the sum of its proper divisors (504698877).

1123106211 is a wasteful number, since it uses less digits than its factorization.

1123106211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426202 (or 426199 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1123106211 is about 33512.7768321278. The cubic root of 1123106211 is about 1039.4579926623.

Adding to 1123106211 its reverse (1126013211), we get a palindrome (2249119422).

The spelling of 1123106211 in words is "one billion, one hundred twenty-three million, one hundred six thousand, two hundred eleven".