1123102121211 has 48 divisors (see below), whose sum is σ = 1894079136768. Its totient is φ = 627911481600.

The previous prime is 1123102121153. The next prime is 1123102121231. The reversal of 1123102121211 is 1121212013211.

It is a happy number.

1123102121211 is a `hidden beast` number, since 11 + 231 + 0 + 212 + 1 + 211 = 666.

It is not a de Polignac number, because 1123102121211 - 2²⁹ = 1122565250299 is a prime.

It is a super-2 number, since 2×1123102121211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123102121231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9180516 + ... + 9302046.

It is an arithmetic number, because the mean of its divisors is an integer number (39459982016).

Almost surely, 2^{1123102121211} is an apocalyptic number.

1123102121211 is a deficient number, since it is larger than the sum of its proper divisors (770977015557).

1123102121211 is a wasteful number, since it uses less digits than its factorization.

1123102121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124712 (or 124709 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1123102121211 its reverse (1121212013211), we get a palindrome (2244314134422).

The spelling of 1123102121211 in words is "one trillion, one hundred twenty-three billion, one hundred two million, one hundred twenty-one thousand, two hundred eleven".