1244233423420 has 24 divisors (see below), whose sum is σ = 2813881742784. Its totient is φ = 459409263936.

The previous prime is 1244233423399. The next prime is 1244233423423. The reversal of 1244233423420 is 243243324421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244233423423) 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, 2392756324 + ... + 2392756843.

It is an arithmetic number, because the mean of its divisors is an integer number (117245072616).

Almost surely, 2^{1244233423420} is an apocalyptic number.

1244233423420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244233423420 is an abundant number, since it is smaller than the sum of its proper divisors (1569648319364).

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

1244233423420 is a wasteful number, since it uses less digits than its factorization.

1244233423420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785513189 (or 4785513187 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 1244233423420 its reverse (243243324421), we get a palindrome (1487476747841).

The spelling of 1244233423420 in words is "one trillion, two hundred forty-four billion, two hundred thirty-three million, four hundred twenty-three thousand, four hundred twenty".