1203023323100 has 72 divisors (see below), whose sum is σ = 2641250980368. Its totient is φ = 475566336000.

The previous prime is 1203023323067. The next prime is 1203023323207. The reversal of 1203023323100 is 13233203021.

It is a super-2 number, since 2×1203023323100² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6711239 + ... + 6888161.

It is an arithmetic number, because the mean of its divisors is an integer number (36684041394).

Almost surely, 2^{1203023323100} is an apocalyptic number.

1203023323100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203023323100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320625490184).

1203023323100 is an abundant number, since it is smaller than the sum of its proper divisors (1438227657268).

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

1203023323100 is a wasteful number, since it uses less digits than its factorization.

1203023323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177735 (or 177728 counting only the distinct ones).

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

Adding to 1203023323100 its reverse (13233203021), we get a palindrome (1216256526121).

The spelling of 1203023323100 in words is "one trillion, two hundred three billion, twenty-three million, three hundred twenty-three thousand, one hundred".