1212302112331 has 8 divisors (see below), whose sum is σ = 1215285513984. Its totient is φ = 1209319823400.

The previous prime is 1212302112317. The next prime is 1212302112377. The reversal of 1212302112331 is 1332112032121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212302112331 - 2⁵ = 1212302112299 is a prime.

It is a super-2 number, since 2×1212302112331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212302112391) 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 7 ways as a sum of consecutive naturals, for example, 1924906 + ... + 2475856.

It is an arithmetic number, because the mean of its divisors is an integer number (151910689248).

Almost surely, 2^{1212302112331} is an apocalyptic number.

1212302112331 is a deficient number, since it is larger than the sum of its proper divisors (2983401653).

1212302112331 is an equidigital number, since it uses as much as digits as its factorization.

1212302112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556361.

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

Adding to 1212302112331 its reverse (1332112032121), we get a palindrome (2544414144452).

The spelling of 1212302112331 in words is "one trillion, two hundred twelve billion, three hundred two million, one hundred twelve thousand, three hundred thirty-one".