243231102312 has 64 divisors (see below), whose sum is σ = 681286161600. Its totient is φ = 71714327040.

The previous prime is 243231102307. The next prime is 243231102319. The reversal of 243231102312 is 213201132342.

It is a super-2 number, since 2×243231102312² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (243231102319) 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, 12440637 + ... + 12460172.

It is an arithmetic number, because the mean of its divisors is an integer number (10645096275).

Almost surely, 2^243231102312 is an apocalyptic number.

243231102312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243231102312 is an abundant number, since it is smaller than the sum of its proper divisors (438055059288).

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

243231102312 is a wasteful number, since it uses less digits than its factorization.

243231102312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24900866 (or 24900862 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 243231102312 its reverse (213201132342), we get a palindrome (456432234654).

It can be divided in two parts, 243231 and 102312, that added together give a palindrome (345543).

The spelling of 243231102312 in words is "two hundred forty-three billion, two hundred thirty-one million, one hundred two thousand, three hundred twelve".