1123203031323 has 16 divisors (see below), whose sum is σ = 1576451491200. Its totient is φ = 709379605440.

The previous prime is 1123203031253. The next prime is 1123203031337. The reversal of 1123203031323 is 3231303023211.

It is not a de Polignac number, because 1123203031323 - 2⁹ = 1123203030811 is a prime.

It is a super-2 number, since 2×1123203031323² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123203031293 and 1123203031302.

It is not an unprimeable number, because it can be changed into a prime (1123203031343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4409383 + ... + 4657151.

It is an arithmetic number, because the mean of its divisors is an integer number (98528218200).

Almost surely, 2^{1123203031323} is an apocalyptic number.

1123203031323 is a deficient number, since it is larger than the sum of its proper divisors (453248459877).

1123203031323 is a wasteful number, since it uses less digits than its factorization.

1123203031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327322.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1123203031323 its reverse (3231303023211), we get a palindrome (4354506054534).

The spelling of 1123203031323 in words is "one trillion, one hundred twenty-three billion, two hundred three million, thirty-one thousand, three hundred twenty-three".