1223203101000 has 128 divisors (see below), whose sum is σ = 3816828812160. Its totient is φ = 326150304000.

The previous prime is 1223203100941. The next prime is 1223203101017. The reversal of 1223203101000 is 1013023221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35175622 + ... + 35210378.

It is an arithmetic number, because the mean of its divisors is an integer number (29818975095).

Almost surely, 2^{1223203101000} is an apocalyptic number.

1223203101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223203101000 is an abundant number, since it is smaller than the sum of its proper divisors (2593625711160).

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

1223203101000 is a wasteful number, since it uses less digits than its factorization.

1223203101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46512 (or 46498 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1223203101000 its reverse (1013023221), we get a palindrome (1224216124221).

The spelling of 1223203101000 in words is "one trillion, two hundred twenty-three billion, two hundred three million, one hundred one thousand".