1200100332 has 24 divisors (see below), whose sum is σ = 2802772336. Its totient is φ = 399670848.

The previous prime is 1200100331. The next prime is 1200100357. The reversal of 1200100332 is 2330010021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1200100331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31363 + ... + 58170.

Almost surely, 2^1200100332 is an apocalyptic number.

1200100332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200100332 is an abundant number, since it is smaller than the sum of its proper divisors (1602672004).

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

1200100332 is a wasteful number, since it uses less digits than its factorization.

1200100332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90657 (or 90655 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1200100332 is about 34642.4642887887. The cubic root of 1200100332 is about 1062.6881846516.

Adding to 1200100332 its reverse (2330010021), we get a palindrome (3530110353).

The spelling of 1200100332 in words is "one billion, two hundred million, one hundred thousand, three hundred thirty-two".