1303121120220 has 36 divisors (see below), whose sum is σ = 3952800731880. Its totient is φ = 347498965344.

The previous prime is 1303121120219. The next prime is 1303121120293. The reversal of 1303121120220 is 220211213031.

1303121120220 is a `hidden beast` number, since 1 + 303 + 1 + 21 + 120 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1303121120193 and 1303121120202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3619780710 + ... + 3619781069.

It is an arithmetic number, because the mean of its divisors is an integer number (109800020330).

Almost surely, 2^{1303121120220} is an apocalyptic number.

1303121120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303121120220 is an abundant number, since it is smaller than the sum of its proper divisors (2649679611660).

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

1303121120220 is a wasteful number, since it uses less digits than its factorization.

1303121120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7239561794 (or 7239561789 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1303121120220 its reverse (220211213031), we get a palindrome (1523332333251).

The spelling of 1303121120220 in words is "one trillion, three hundred three billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twenty".