1303221101100 has 72 divisors (see below), whose sum is σ = 3774207841488. Its totient is φ = 347197996800.

The previous prime is 1303221101099. The next prime is 1303221101173. The reversal of 1303221101100 is 11011223031.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1303221101100.

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, 1728859 + ... + 2365458.

It is an arithmetic number, because the mean of its divisors is an integer number (52419553354).

Almost surely, 2^{1303221101100} is an apocalyptic number.

1303221101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303221101100 is an abundant number, since it is smaller than the sum of its proper divisors (2470986740388).

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

1303221101100 is a wasteful number, since it uses less digits than its factorization.

1303221101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095395 (or 4095388 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1303221101100 its reverse (11011223031), we get a palindrome (1314232324131).

The spelling of 1303221101100 in words is "one trillion, three hundred three billion, two hundred twenty-one million, one hundred one thousand, one hundred".