1243432820300 has 108 divisors (see below), whose sum is σ = 2981216851368. Its totient is φ = 449813760000.

The previous prime is 1243432820299. The next prime is 1243432820303. The reversal of 1243432820300 is 30282343421.

It is a super-2 number, since 2×1243432820300² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1243432820303) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2069075 + ... + 2601525.

Almost surely, 2^{1243432820300} is an apocalyptic number.

1243432820300 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 1243432820300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490608425684).

1243432820300 is an abundant number, since it is smaller than the sum of its proper divisors (1737784031068).

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

1243432820300 is a wasteful number, since it uses less digits than its factorization.

1243432820300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532680 (or 532662 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 1243432820300 in words is "one trillion, two hundred forty-three billion, four hundred thirty-two million, eight hundred twenty thousand, three hundred".