243310023201 has 16 divisors (see below), whose sum is σ = 380778621824. Its totient is φ = 135276614784.

The previous prime is 243310023199. The next prime is 243310023277. The reversal of 243310023201 is 102320013342.

It is not a de Polignac number, because 243310023201 - 2¹ = 243310023199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243310023701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156569380 + ... + 156570933.

It is an arithmetic number, because the mean of its divisors is an integer number (23798663864).

Almost surely, 2^243310023201 is an apocalyptic number.

243310023201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

243310023201 is a deficient number, since it is larger than the sum of its proper divisors (137468598623).

243310023201 is a wasteful number, since it uses less digits than its factorization.

243310023201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313140360.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 243310023201 its reverse (102320013342), we get a palindrome (345630036543).

The spelling of 243310023201 in words is "two hundred forty-three billion, three hundred ten million, twenty-three thousand, two hundred one".