1203322311220 has 24 divisors (see below), whose sum is σ = 2530054813608. Its totient is φ = 480742646400.

The previous prime is 1203322311197. The next prime is 1203322311227. The reversal of 1203322311220 is 221132233021.

It can be written as a sum of positive squares in 4 ways, for example, as 575808016 + 1202746503204 = 23996^2 + 1096698^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1203322311191 and 1203322311200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203322311227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36625551 + ... + 36658390.

It is an arithmetic number, because the mean of its divisors is an integer number (105418950567).

Almost surely, 2^{1203322311220} is an apocalyptic number.

1203322311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203322311220 is an abundant number, since it is smaller than the sum of its proper divisors (1326732502388).

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

1203322311220 is a wasteful number, since it uses less digits than its factorization.

1203322311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73284771 (or 73284769 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1203322311220 its reverse (221132233021), we get a palindrome (1424454544241).

The spelling of 1203322311220 in words is "one trillion, two hundred three billion, three hundred twenty-two million, three hundred eleven thousand, two hundred twenty".