1212303311232 has 64 divisors (see below), whose sum is σ = 3467886890160. Its totient is φ = 373016401920.

The previous prime is 1212303311203. The next prime is 1212303311273. The reversal of 1212303311232 is 2321133032121.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121419619 + ... + 121429602.

Almost surely, 2^{1212303311232} is an apocalyptic number.

1212303311232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212303311232 is an abundant number, since it is smaller than the sum of its proper divisors (2255583578928).

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

1212303311232 is a wasteful number, since it uses less digits than its factorization.

1212303311232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242849251 (or 242849239 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1212303311232 its reverse (2321133032121), we get a palindrome (3533436343353).

The spelling of 1212303311232 in words is "one trillion, two hundred twelve billion, three hundred three million, three hundred eleven thousand, two hundred thirty-two".