1220120052003 has 12 divisors (see below), whose sum is σ = 1768026291720. Its totient is φ = 810814601376.

The previous prime is 1220120051957. The next prime is 1220120052031. The reversal of 1220120052003 is 3002500210221.

1220120052003 is a `hidden beast` number, since 1 + 2 + 20 + 120 + 0 + 520 + 0 + 3 = 666.

It is not a de Polignac number, because 1220120052003 - 2⁶ = 1220120051939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220120052043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216560913 + ... + 216566546.

It is an arithmetic number, because the mean of its divisors is an integer number (147335524310).

Almost surely, 2^{1220120052003} is an apocalyptic number.

1220120052003 is a deficient number, since it is larger than the sum of its proper divisors (547906239717).

1220120052003 is a wasteful number, since it uses less digits than its factorization.

1220120052003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433127778 (or 433127775 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 1220120052003 its reverse (3002500210221), we get a palindrome (4222620262224).

The spelling of 1220120052003 in words is "one trillion, two hundred twenty billion, one hundred twenty million, fifty-two thousand, three".