1303203221220 has 96 divisors (see below), whose sum is σ = 3761778093696. Its totient is φ = 336885120000.

The previous prime is 1303203221143. The next prime is 1303203221273. The reversal of 1303203221220 is 221223023031.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1300906 + ... + 2073345.

It is an arithmetic number, because the mean of its divisors is an integer number (39185188476).

Almost surely, 2^{1303203221220} is an apocalyptic number.

1303203221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303203221220 is an abundant number, since it is smaller than the sum of its proper divisors (2458574872476).

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

1303203221220 is a wasteful number, since it uses less digits than its factorization.

1303203221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374461 (or 3374459 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1303203221220 its reverse (221223023031), we get a palindrome (1524426244251).

The spelling of 1303203221220 in words is "one trillion, three hundred three billion, two hundred three million, two hundred twenty-one thousand, two hundred twenty".