1121123123100 has 54 divisors (see below), whose sum is σ = 3514098147560. Its totient is φ = 298966165920.

The previous prime is 1121123123093. The next prime is 1121123123117. The reversal of 1121123123100 is 13213211211.

1121123123100 is a `hidden beast` number, since 1 + 121 + 1 + 231 + 2 + 310 + 0 = 666.

It is a super-2 number, since 2×1121123123100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 622845280 + ... + 622847079.

Almost surely, 2^{1121123123100} is an apocalyptic number.

1121123123100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121123123100 is an abundant number, since it is smaller than the sum of its proper divisors (2392975024460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121123123100 is a wasteful number, since it uses less digits than its factorization.

1121123123100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245692379 (or 1245692369 counting only the distinct ones).

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

Adding to 1121123123100 its reverse (13213211211), we get a palindrome (1134336334311).

The spelling of 1121123123100 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred".