201243344224340 has 48 divisors (see below), whose sum is σ = 466210321496640. Its totient is φ = 72357157466880.

The previous prime is 201243344224271. The next prime is 201243344224451. The reversal of 201243344224340 is 43422443342102.

It is a junction number, because it is equal to n+sod(n) for n = 201243344224294 and 201243344224303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5138983082 + ... + 5139022241.

It is an arithmetic number, because the mean of its divisors is an integer number (9712715031180).

Almost surely, 2^{201243344224340} is an apocalyptic number.

201243344224340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201243344224340 is an abundant number, since it is smaller than the sum of its proper divisors (264966977272300).

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

201243344224340 is a wasteful number, since it uses less digits than its factorization.

201243344224340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10278005432 (or 10278005430 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 38.

Adding to 201243344224340 its reverse (43422443342102), we get a palindrome (244665787566442).

The spelling of 201243344224340 in words is "two hundred one trillion, two hundred forty-three billion, three hundred forty-four million, two hundred twenty-four thousand, three hundred forty".