1100133121123 has 4 divisors (see below), whose sum is σ = 1158034864360. Its totient is φ = 1042231377888.

The previous prime is 1100133121121. The next prime is 1100133121141. The reversal of 1100133121123 is 3211213310011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1100133121123 - 2¹ = 1100133121121 is a prime.

It is a super-2 number, since 2×1100133121123² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 57901743217 = 1100133121123 / (1 + 1 + 0 + 0 + 1 + 3 + 3 + 1 + 2 + 1 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100133121123.

It is not an unprimeable number, because it can be changed into a prime (1100133121121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28950871590 + ... + 28950871627.

It is an arithmetic number, because the mean of its divisors is an integer number (289508716090).

Almost surely, 2^{1100133121123} is an apocalyptic number.

1100133121123 is a deficient number, since it is larger than the sum of its proper divisors (57901743237).

1100133121123 is an equidigital number, since it uses as much as digits as its factorization.

1100133121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57901743236.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1100133121123 its reverse (3211213310011), we get a palindrome (4311346431134).

The spelling of 1100133121123 in words is "one trillion, one hundred billion, one hundred thirty-three million, one hundred twenty-one thousand, one hundred twenty-three".