1243141112400 has 240 divisors, whose sum is σ = 4572856842240. Its totient is φ = 285506035200.

The previous prime is 1243141112383. The next prime is 1243141112431. The reversal of 1243141112400 is 42111413421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 2227552 + ... + 2729151.

It is an arithmetic number, because the mean of its divisors is an integer number (19053570176).

Almost surely, 2^{1243141112400} is an apocalyptic number.

1243141112400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243141112400 is an abundant number, since it is smaller than the sum of its proper divisors (3329715729840).

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

1243141112400 is a wasteful number, since it uses less digits than its factorization.

1243141112400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956754 (or 4956743 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1243141112400 its reverse (42111413421), we get a palindrome (1285252525821).

The spelling of 1243141112400 in words is "one trillion, two hundred forty-three billion, one hundred forty-one million, one hundred twelve thousand, four hundred".