1123203331023 has 32 divisors (see below), whose sum is σ = 1508274984960. Its totient is φ = 743490316800.

The previous prime is 1123203331001. The next prime is 1123203331049. The reversal of 1123203331023 is 3201333023211.

It is not a de Polignac number, because 1123203331023 - 2²⁴ = 1123186553807 is a prime.

It is a super-3 number, since 3×1123203331023³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123203330984 and 1123203331002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123203331423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448741590 + ... + 448744092.

It is an arithmetic number, because the mean of its divisors is an integer number (47133593280).

Almost surely, 2^{1123203331023} is an apocalyptic number.

1123203331023 is a deficient number, since it is larger than the sum of its proper divisors (385071653937).

1123203331023 is a wasteful number, since it uses less digits than its factorization.

1123203331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439.

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

Adding to 1123203331023 its reverse (3201333023211), we get a palindrome (4324536354234).

The spelling of 1123203331023 in words is "one trillion, one hundred twenty-three billion, two hundred three million, three hundred thirty-one thousand, twenty-three".