1212423314432 has 528 divisors, whose sum is σ = 2939134675680. Its totient is φ = 497418240000.

The previous prime is 1212423314393. The next prime is 1212423314441. The reversal of 1212423314432 is 2344133242121.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8722469819 + ... + 8722469957.

Almost surely, 2^{1212423314432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212423314432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469567337840).

1212423314432 is an abundant number, since it is smaller than the sum of its proper divisors (1726711361248).

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

1212423314432 is a wasteful number, since it uses less digits than its factorization.

1212423314432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 311 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

Adding to 1212423314432 its reverse (2344133242121), we get a palindrome (3556556556553).

The spelling of 1212423314432 in words is "one trillion, two hundred twelve billion, four hundred twenty-three million, three hundred fourteen thousand, four hundred thirty-two".