1243354311234 has 48 divisors (see below), whose sum is σ = 3090227474880. Its totient is φ = 353923469280.

The previous prime is 1243354311223. The next prime is 1243354311253. The reversal of 1243354311234 is 4321134533421.

1243354311234 is a `hidden beast` number, since 1 + 2 + 4 + 335 + 4 + 311 + 2 + 3 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18307912 + ... + 18375699.

It is an arithmetic number, because the mean of its divisors is an integer number (64379739060).

Almost surely, 2^{1243354311234} is an apocalyptic number.

1243354311234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1243354311234 is an abundant number, since it is smaller than the sum of its proper divisors (1846873163646).

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

1243354311234 is a wasteful number, since it uses less digits than its factorization.

1243354311234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36683895 (or 36683892 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

Adding to 1243354311234 its reverse (4321134533421), we get a palindrome (5564488844655).

The spelling of 1243354311234 in words is "one trillion, two hundred forty-three billion, three hundred fifty-four million, three hundred eleven thousand, two hundred thirty-four".