243051513100 has 72 divisors (see below), whose sum is σ = 605651860800. Its totient is φ = 83730657600.

The previous prime is 243051513091. The next prime is 243051513137. The reversal of 243051513100 is 1315150342.

It is a happy number.

It is a super-2 number, since 2×243051513100² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5793730 + ... + 5835529.

It is an arithmetic number, because the mean of its divisors is an integer number (8411831400).

Almost surely, 2^243051513100 is an apocalyptic number.

243051513100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243051513100 is an abundant number, since it is smaller than the sum of its proper divisors (362600347700).

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

243051513100 is a wasteful number, since it uses less digits than its factorization.

243051513100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11629303 (or 11629296 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 243051513100 its reverse (1315150342), we get a palindrome (244366663442).

The spelling of 243051513100 in words is "two hundred forty-three billion, fifty-one million, five hundred thirteen thousand, one hundred".