243030113020 has 24 divisors (see below), whose sum is σ = 537224461200. Its totient is φ = 92095621632.

The previous prime is 243030113009. The next prime is 243030113023. The reversal of 243030113020 is 20311030342.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243030113023) 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, 319776085 + ... + 319776844.

It is an arithmetic number, because the mean of its divisors is an integer number (22384352550).

Almost surely, 2^243030113020 is an apocalyptic number.

243030113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243030113020 is an abundant number, since it is smaller than the sum of its proper divisors (294194348180).

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

243030113020 is a wasteful number, since it uses less digits than its factorization.

243030113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639552957 (or 639552955 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 243030113020 its reverse (20311030342), we get a palindrome (263341143362).

The spelling of 243030113020 in words is "two hundred forty-three billion, thirty million, one hundred thirteen thousand, twenty".