1243245324032 has 72 divisors (see below), whose sum is σ = 2610021536640. Its totient is φ = 590219735040.

The previous prime is 1243245324031. The next prime is 1243245324059. The reversal of 1243245324032 is 2304235423421.

It is a junction number, because it is equal to n+sod(n) for n = 1243245323983 and 1243245324001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243245324031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057307 + ... + 1898522.

It is an arithmetic number, because the mean of its divisors is an integer number (36250299120).

Almost surely, 2^{1243245324032} is an apocalyptic number.

It is an amenable number.

1243245324032 is an abundant number, since it is smaller than the sum of its proper divisors (1366776212608).

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

1243245324032 is an equidigital number, since it uses as much as digits as its factorization.

1243245324032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955929 (or 2955915 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

The spelling of 1243245324032 in words is "one trillion, two hundred forty-three billion, two hundred forty-five million, three hundred twenty-four thousand, thirty-two".