201243307015 has 8 divisors (see below), whose sum is σ = 242841086640. Its totient is φ = 160095233472.

The previous prime is 201243307009. The next prime is 201243307021. The reversal of 201243307015 is 510703342102.

It is an interprime number because it is at equal distance from previous prime (201243307009) and next prime (201243307021).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201243307015 - 2²¹ = 201241209863 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112425534 + ... + 112427323.

It is an arithmetic number, because the mean of its divisors is an integer number (30355135830).

Almost surely, 2^201243307015 is an apocalyptic number.

201243307015 is a deficient number, since it is larger than the sum of its proper divisors (41597779625).

201243307015 is a wasteful number, since it uses less digits than its factorization.

201243307015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224853041.

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 201243307015 its reverse (510703342102), we get a palindrome (711946649117).

The spelling of 201243307015 in words is "two hundred one billion, two hundred forty-three million, three hundred seven thousand, fifteen".