1243432201400 has 24 divisors (see below), whose sum is σ = 2890979868720. Its totient is φ = 497372880480.

The previous prime is 1243432201393. The next prime is 1243432201409. The reversal of 1243432201400 is 41022343421.

It is a super-2 number, since 2×1243432201400² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1243432201400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243432201409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3108580304 + ... + 3108580703.

It is an arithmetic number, because the mean of its divisors is an integer number (120457494530).

Almost surely, 2^{1243432201400} is an apocalyptic number.

1243432201400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243432201400 is an abundant number, since it is smaller than the sum of its proper divisors (1647547667320).

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

1243432201400 is a wasteful number, since it uses less digits than its factorization.

1243432201400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217161023 (or 6217161014 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1243432201400 its reverse (41022343421), we get a palindrome (1284454544821).

The spelling of 1243432201400 in words is "one trillion, two hundred forty-three billion, four hundred thirty-two million, two hundred one thousand, four hundred".