1203531040 has 24 divisors (see below), whose sum is σ = 2843342460. Its totient is φ = 481412352.

The previous prime is 1203530987. The next prime is 1203531053. The reversal of 1203531040 is 401353021.

It can be written as a sum of positive squares in 2 ways, for example, as 1143251344 + 60279696 = 33812^2 + 7764^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1203530999 and 1203531017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3760875 + ... + 3761194.

Almost surely, 2^1203531040 is an apocalyptic number.

1203531040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203531040 is an abundant number, since it is smaller than the sum of its proper divisors (1639811420).

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

1203531040 is an equidigital number, since it uses as much as digits as its factorization.

1203531040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522084 (or 7522076 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1203531040 is about 34691.9448863854. The cubic root of 1203531040 is about 1063.6998512677.

Adding to 1203531040 its reverse (401353021), we get a palindrome (1604884061).

The spelling of 1203531040 in words is "one billion, two hundred three million, five hundred thirty-one thousand, forty".