201511230514 has 8 divisors (see below), whose sum is σ = 329745649968. Its totient is φ = 91596013860.

The previous prime is 201511230493. The next prime is 201511230521. The reversal of 201511230514 is 415032115102.

201511230514 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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, 4579800672 + ... + 4579800715.

It is an arithmetic number, because the mean of its divisors is an integer number (41218206246).

Almost surely, 2^201511230514 is an apocalyptic number.

201511230514 is a deficient number, since it is larger than the sum of its proper divisors (128234419454).

201511230514 is a wasteful number, since it uses less digits than its factorization.

201511230514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9159601400.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 201511230514 its reverse (415032115102), we get a palindrome (616543345616).

The spelling of 201511230514 in words is "two hundred one billion, five hundred eleven million, two hundred thirty thousand, five hundred fourteen".