1203120013220 has 48 divisors (see below), whose sum is σ = 2534544470640. Its totient is φ = 479726198784.

The previous prime is 1203120013201. The next prime is 1203120013243. The reversal of 1203120013220 is 223100213021.

It can be written as a sum of positive squares in 8 ways, for example, as 140493030976 + 1062626982244 = 374824^2 + 1030838^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41969132 + ... + 41997788.

It is an arithmetic number, because the mean of its divisors is an integer number (52803009805).

Almost surely, 2^{1203120013220} is an apocalyptic number.

1203120013220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203120013220 is an abundant number, since it is smaller than the sum of its proper divisors (1331424457420).

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

1203120013220 is a wasteful number, since it uses less digits than its factorization.

1203120013220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35232 (or 35230 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1203120013220 its reverse (223100213021), we get a palindrome (1426220226241).

The spelling of 1203120013220 in words is "one trillion, two hundred three billion, one hundred twenty million, thirteen thousand, two hundred twenty".