1234450243212 has 12 divisors (see below), whose sum is σ = 2880383900856. Its totient is φ = 411483414400.

The previous prime is 1234450243211. The next prime is 1234450243231. The reversal of 1234450243212 is 2123420544321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1234450243211) 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, 51435426789 + ... + 51435426812.

It is an arithmetic number, because the mean of its divisors is an integer number (240031991738).

Almost surely, 2^{1234450243212} is an apocalyptic number.

1234450243212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1234450243212 is an abundant number, since it is smaller than the sum of its proper divisors (1645933657644).

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

1234450243212 is a wasteful number, since it uses less digits than its factorization.

1234450243212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102870853608 (or 102870853606 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 1234450243212 its reverse (2123420544321), we get a palindrome (3357870787533).

The spelling of 1234450243212 in words is "one trillion, two hundred thirty-four billion, four hundred fifty million, two hundred forty-three thousand, two hundred twelve".