1243234000000 has 112 divisors (see below), whose sum is σ = 3095909395290. Its totient is φ = 497292800000.

The previous prime is 1243233999919. The next prime is 1243234000007. The reversal of 1243234000000 is 4323421.

It can be written as a sum of positive squares in 7 ways, for example, as 1086981397056 + 156252602944 = 1042584^2 + 395288^2 .

It is not an unprimeable number, because it can be changed into a prime (1243234000007) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1689192 + ... + 2310808.

Almost surely, 2^{1243234000000} is an apocalyptic number.

1243234000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243234000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547954697645).

1243234000000 is an abundant number, since it is smaller than the sum of its proper divisors (1852675395290).

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

1243234000000 is an frugal number, since it uses more digits than its factorization.

1243234000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621661 (or 621624 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 1243234000000 its reverse (4323421), we get a palindrome (1243238323421).

The spelling of 1243234000000 in words is "one trillion, two hundred forty-three billion, two hundred thirty-four million", and thus it is an aban number.