1203122020 has 12 divisors (see below), whose sum is σ = 2526556284. Its totient is φ = 481248800.

The previous prime is 1203122003. The next prime is 1203122117. The reversal of 1203122020 is 202213021.

It can be written as a sum of positive squares in 2 ways, for example, as 152324964 + 1050797056 = 12342^2 + 32416^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30078031 + ... + 30078070.

It is an arithmetic number, because the mean of its divisors is an integer number (210546357).

Almost surely, 2^1203122020 is an apocalyptic number.

1203122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203122020 is an abundant number, since it is smaller than the sum of its proper divisors (1323434264).

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

1203122020 is a wasteful number, since it uses less digits than its factorization.

1203122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60156110 (or 60156108 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1203122020 is about 34686.0493570542. The cubic root of 1203122020 is about 1063.5793381567.

Adding to 1203122020 its reverse (202213021), we get a palindrome (1405335041).

The spelling of 1203122020 in words is "one billion, two hundred three million, one hundred twenty-two thousand, twenty".