1123203323000 has 128 divisors (see below), whose sum is σ = 2937165416640. Its totient is φ = 398475520000.

The previous prime is 1123203322991. The next prime is 1123203323003. The reversal of 1123203323000 is 3233023211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123203323003) 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, 794237 + ... + 1696236.

Almost surely, 2^{1123203323000} is an apocalyptic number.

1123203323000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123203323000 is an abundant number, since it is smaller than the sum of its proper divisors (1813962093640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123203323000 is a wasteful number, since it uses less digits than its factorization.

1123203323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490546 (or 2490532 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1123203323000 its reverse (3233023211), we get a palindrome (1126436346211).

The spelling of 1123203323000 in words is "one trillion, one hundred twenty-three billion, two hundred three million, three hundred twenty-three thousand".