1121101123 has 4 divisors (see below), whose sum is σ = 1127979208. Its totient is φ = 1114223040.

The previous prime is 1121101063. The next prime is 1121101153. The reversal of 1121101123 is 3211011211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3211011211 = 43651 ⋅73561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121101123 is a prime.

It is a super-2 number, since 2×1121101123² = 2513735455983722258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121101153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3438798 + ... + 3439123.

It is an arithmetic number, because the mean of its divisors is an integer number (281994802).

Almost surely, 2^1121101123 is an apocalyptic number.

1121101123 is a deficient number, since it is larger than the sum of its proper divisors (6878085).

1121101123 is an equidigital number, since it uses as much as digits as its factorization.

1121101123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878084.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1121101123 is about 33482.8481912755. The cubic root of 1121101123 is about 1038.8390407256.

Adding to 1121101123 its reverse (3211011211), we get a palindrome (4332112334).

The spelling of 1121101123 in words is "one billion, one hundred twenty-one million, one hundred one thousand, one hundred twenty-three".