1311201223132 has 12 divisors (see below), whose sum is σ = 2297218568680. Its totient is φ = 654853060656.

The previous prime is 1311201223109. The next prime is 1311201223139. The reversal of 1311201223132 is 2313221021131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311201223139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186883782 + ... + 186890797.

Almost surely, 2^{1311201223132} is an apocalyptic number.

It is an amenable number.

1311201223132 is a deficient number, since it is larger than the sum of its proper divisors (986017345548).

1311201223132 is a wasteful number, since it uses less digits than its factorization.

1311201223132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373775460 (or 373775458 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1311201223132 its reverse (2313221021131), we get a palindrome (3624422244263).

The spelling of 1311201223132 in words is "one trillion, three hundred eleven billion, two hundred one million, two hundred twenty-three thousand, one hundred thirty-two".