1123321130121 has 4 divisors (see below), whose sum is σ = 1497761506832. Its totient is φ = 748880753412.

The previous prime is 1123321130047. The next prime is 1123321130143. The reversal of 1123321130121 is 1210311233211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1123321130121 - 2¹⁷ = 1123320999049 is a prime.

It is a super-2 number, since 2×1123321130121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123321130021) 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, 187220188351 + ... + 187220188356.

It is an arithmetic number, because the mean of its divisors is an integer number (374440376708).

Almost surely, 2^{1123321130121} is an apocalyptic number.

It is an amenable number.

1123321130121 is a deficient number, since it is larger than the sum of its proper divisors (374440376711).

1123321130121 is an equidigital number, since it uses as much as digits as its factorization.

1123321130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374440376710.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1123321130121 its reverse (1210311233211), we get a palindrome (2333632363332).

The spelling of 1123321130121 in words is "one trillion, one hundred twenty-three billion, three hundred twenty-one million, one hundred thirty thousand, one hundred twenty-one".