1123032120111 has 36 divisors (see below), whose sum is σ = 1784025770800. Its totient is φ = 680246424000.

The previous prime is 1123032120083. The next prime is 1123032120113. The reversal of 1123032120111 is 1110212303211.

1123032120111 is a `hidden beast` number, since 1 + 1 + 230 + 321 + 2 + 0 + 111 = 666.

It is not a de Polignac number, because 1123032120111 - 2¹⁵ = 1123032087343 is a prime.

It is a super-2 number, since 2×1123032120111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123032120113) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1674990 + ... + 2247588.

Almost surely, 2^{1123032120111} is an apocalyptic number.

1123032120111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123032120111 is a deficient number, since it is larger than the sum of its proper divisors (660993650689).

1123032120111 is a wasteful number, since it uses less digits than its factorization.

1123032120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574428 (or 574414 counting only the distinct ones).

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

Adding to 1123032120111 its reverse (1110212303211), we get a palindrome (2233244423322).

The spelling of 1123032120111 in words is "one trillion, one hundred twenty-three billion, thirty-two million, one hundred twenty thousand, one hundred eleven".