1203320020 has 24 divisors (see below), whose sum is σ = 2887968384. Its totient is φ = 412566816.

The previous prime is 1203320009. The next prime is 1203320023. The reversal of 1203320020 is 200233021.

It is a happy number.

1203320020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203320023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4297432 + ... + 4297711.

It is an arithmetic number, because the mean of its divisors is an integer number (120332016).

Almost surely, 2^1203320020 is an apocalyptic number.

1203320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203320020 is an abundant number, since it is smaller than the sum of its proper divisors (1684648364).

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

1203320020 is a wasteful number, since it uses less digits than its factorization.

1203320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8595159 (or 8595157 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1203320020 is about 34688.9034130513. The cubic root of 1203320020 is about 1063.6376800246.

Adding to 1203320020 its reverse (200233021), we get a palindrome (1403553041).

The spelling of 1203320020 in words is "one billion, two hundred three million, three hundred twenty thousand, twenty".