231520000012150 has 48 divisors (see below), whose sum is σ = 449361378057888. Its totient is φ = 88579346240000.

The previous prime is 231520000012141. The next prime is 231520000012151. The reversal of 231520000012150 is 51210000025132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231520000012151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43775700 + ... + 48778600.

It is an arithmetic number, because the mean of its divisors is an integer number (9361695376206).

Almost surely, 2^{231520000012150} is an apocalyptic number.

231520000012150 is a deficient number, since it is larger than the sum of its proper divisors (217841378045738).

231520000012150 is a wasteful number, since it uses less digits than its factorization.

231520000012150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5043177 (or 5043172 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 231520000012150 its reverse (51210000025132), we get a palindrome (282730000037282).

The spelling of 231520000012150 in words is "two hundred thirty-one trillion, five hundred twenty billion, twelve thousand, one hundred fifty".