1023322001200 has 120 divisors (see below), whose sum is σ = 2521988894880. Its totient is φ = 398791219200.

The previous prime is 1023322001189. The next prime is 1023322001287. The reversal of 1023322001200 is 21002233201.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 11879886 + ... + 11965714.

It is an arithmetic number, because the mean of its divisors is an integer number (21016574124).

Almost surely, 2^{1023322001200} is an apocalyptic number.

1023322001200 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 1023322001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260994447440).

1023322001200 is an abundant number, since it is smaller than the sum of its proper divisors (1498666893680).

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

1023322001200 is a wasteful number, since it uses less digits than its factorization.

1023322001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86615 (or 86604 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1023322001200 its reverse (21002233201), we get a palindrome (1044324234401).

The spelling of 1023322001200 in words is "one trillion, twenty-three billion, three hundred twenty-two million, one thousand, two hundred".