1201011132 has 12 divisors (see below), whose sum is σ = 2802359336. Its totient is φ = 400337040.

The previous prime is 1201011131. The next prime is 1201011143. The reversal of 1201011132 is 2311101021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 100084261 = 1201011132 / (1 + 2 + 0 + 1 + 0 + 1 + 1 + 1 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201011131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50042119 + ... + 50042142.

Almost surely, 2^1201011132 is an apocalyptic number.

1201011132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201011132 is an abundant number, since it is smaller than the sum of its proper divisors (1601348204).

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

1201011132 is a wasteful number, since it uses less digits than its factorization.

1201011132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100084268 (or 100084266 counting only the distinct ones).

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

The square root of 1201011132 is about 34655.6075116279. The cubic root of 1201011132 is about 1062.9569543032.

Adding to 1201011132 its reverse (2311101021), we get a palindrome (3512112153).

The spelling of 1201011132 in words is "one billion, two hundred one million, eleven thousand, one hundred thirty-two".