243540100231044 has 12 divisors (see below), whose sum is σ = 568260233872464. Its totient is φ = 81180033410344.

The previous prime is 243540100231013. The next prime is 243540100231069. The reversal of 243540100231044 is 440132001045342.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×243540100231044³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243540100230996 and 243540100231014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10147504176282 + ... + 10147504176305.

It is an arithmetic number, because the mean of its divisors is an integer number (47355019489372).

Almost surely, 2^{243540100231044} is an apocalyptic number.

It is an amenable number.

243540100231044 is an abundant number, since it is smaller than the sum of its proper divisors (324720133641420).

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

243540100231044 is a wasteful number, since it uses less digits than its factorization.

243540100231044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20295008352594 (or 20295008352592 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 243540100231044 its reverse (440132001045342), we get a palindrome (683672101276386).

The spelling of 243540100231044 in words is "two hundred forty-three trillion, five hundred forty billion, one hundred million, two hundred thirty-one thousand, forty-four".