1123323130331 has 4 divisors (see below), whose sum is σ = 1123499787600. Its totient is φ = 1123146473064.

The previous prime is 1123323130309. The next prime is 1123323130343. The reversal of 1123323130331 is 1330313233211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123323130331 is a prime.

It is a super-2 number, since 2×1123323130331² (a number of 25 digits) contains 22 as substring.

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 1123323130331.

It is not an unprimeable number, because it can be changed into a prime (1123323130381) 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, 88319096 + ... + 88331813.

It is an arithmetic number, because the mean of its divisors is an integer number (280874946900).

Almost surely, 2^{1123323130331} is an apocalyptic number.

1123323130331 is a deficient number, since it is larger than the sum of its proper divisors (176657269).

1123323130331 is an equidigital number, since it uses as much as digits as its factorization.

1123323130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176657268.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 1123323130331 its reverse (1330313233211), we get a palindrome (2453636363542).

The spelling of 1123323130331 in words is "one trillion, one hundred twenty-three billion, three hundred twenty-three million, one hundred thirty thousand, three hundred thirty-one".