1201233132 has 48 divisors (see below), whose sum is σ = 3397430400. Its totient is φ = 364009680.

The previous prime is 1201233113. The next prime is 1201233139. The reversal of 1201233132 is 2313321021.

It is a super-2 number, since 2×1201233132² = 2885922074829058848, 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 (1201233139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504382 + ... + 506757.

It is an arithmetic number, because the mean of its divisors is an integer number (70779800).

Almost surely, 2^1201233132 is an apocalyptic number.

1201233132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201233132 is an abundant number, since it is smaller than the sum of its proper divisors (2196197268).

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

1201233132 is a wasteful number, since it uses less digits than its factorization.

1201233132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011163 (or 1011155 counting only the distinct ones).

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

The square root of 1201233132 is about 34658.8103084915. The cubic root of 1201233132 is about 1063.0224440947.

Adding to 1201233132 its reverse (2313321021), we get a palindrome (3514554153).

The spelling of 1201233132 in words is "one billion, two hundred one million, two hundred thirty-three thousand, one hundred thirty-two".