1203013220 has 48 divisors (see below), whose sum is σ = 2559019008. Its totient is φ = 475009920.

The previous prime is 1203013213. The next prime is 1203013237. The reversal of 1203013220 is 223103021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1203013195 and 1203013204.

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, 817085 + ... + 818555.

It is an arithmetic number, because the mean of its divisors is an integer number (53312896).

Almost surely, 2^1203013220 is an apocalyptic number.

1203013220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203013220 is an abundant number, since it is smaller than the sum of its proper divisors (1356005788).

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

1203013220 is a wasteful number, since it uses less digits than its factorization.

1203013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1203013220 is about 34684.4809677181. The cubic root of 1203013220 is about 1063.5472768700.

Adding to 1203013220 its reverse (223103021), we get a palindrome (1426116241).

The spelling of 1203013220 in words is "one billion, two hundred three million, thirteen thousand, two hundred twenty".