1203275520 has 288 divisors, whose sum is σ = 4390021440. Its totient is φ = 311869440.

The previous prime is 1203275497. The next prime is 1203275527. The reversal of 1203275520 is 255723021.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203275527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1278250 + ... + 1279190.

It is an arithmetic number, because the mean of its divisors is an integer number (15243130).

Almost surely, 2^1203275520 is an apocalyptic number.

1203275520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203275520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2195010720).

1203275520 is an abundant number, since it is smaller than the sum of its proper divisors (3186745920).

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

1203275520 is an equidigital number, since it uses as much as digits as its factorization.

1203275520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 1203275520 is about 34688.2619916305. The cubic root of 1203275520 is about 1063.6245683947.

Adding to 1203275520 its reverse (255723021), we get a palindrome (1458998541).

The spelling of 1203275520 in words is "one billion, two hundred three million, two hundred seventy-five thousand, five hundred twenty".