1211331031132 has 12 divisors (see below), whose sum is σ = 2119859796600. Its totient is φ = 605656803536.

The previous prime is 1211331031117. The next prime is 1211331031139. The reversal of 1211331031132 is 2311301331121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211331031139) 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 3 ways as a sum of consecutive naturals, for example, 1860007 + ... + 2425342.

It is an arithmetic number, because the mean of its divisors is an integer number (176654983050).

Almost surely, 2^{1211331031132} is an apocalyptic number.

It is an amenable number.

1211331031132 is a deficient number, since it is larger than the sum of its proper divisors (908528765468).

1211331031132 is a wasteful number, since it uses less digits than its factorization.

1211331031132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356020 (or 4356018 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1211331031132 its reverse (2311301331121), we get a palindrome (3522632362253).

The spelling of 1211331031132 in words is "one trillion, two hundred eleven billion, three hundred thirty-one million, thirty-one thousand, one hundred thirty-two".