1203321132 has 72 divisors (see below), whose sum is σ = 3468419136. Its totient is φ = 348470784.

The previous prime is 1203321121. The next prime is 1203321137. The reversal of 1203321132 is 2311233021.

1203321132 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1203321132² = 2895963493435522848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1203321137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67668 + ... + 83579.

It is an arithmetic number, because the mean of its divisors is an integer number (48172488).

Almost surely, 2^1203321132 is an apocalyptic number.

1203321132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1203321132 is an abundant number, since it is smaller than the sum of its proper divisors (2265098004).

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

1203321132 is a wasteful number, since it uses less digits than its factorization.

1203321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151287 (or 151282 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1203321132 is about 34688.9194412279. The cubic root of 1203321132 is about 1063.6380076639.

Adding to 1203321132 its reverse (2311233021), we get a palindrome (3514554153).

The spelling of 1203321132 in words is "one billion, two hundred three million, three hundred twenty-one thousand, one hundred thirty-two".