12151110231 has 24 divisors (see below), whose sum is σ = 18910456656. Its totient is φ = 7474152960.

The previous prime is 12151110217. The next prime is 12151110233. The reversal of 12151110231 is 13201115121.

12151110231 is a `hidden beast` number, since 1 + 21 + 511 + 102 + 31 = 666.

12151110231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12151110231 - 2⁵ = 12151110199 is a prime.

It is a super-2 number, since 2×12151110231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151110233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243096 + ... + 288786.

It is an arithmetic number, because the mean of its divisors is an integer number (787935694).

Almost surely, 2^12151110231 is an apocalyptic number.

12151110231 is a deficient number, since it is larger than the sum of its proper divisors (6759346425).

12151110231 is a wasteful number, since it uses less digits than its factorization.

12151110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47983 (or 47980 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

Adding to 12151110231 its reverse (13201115121), we get a palindrome (25352225352).

The spelling of 12151110231 in words is "twelve billion, one hundred fifty-one million, one hundred ten thousand, two hundred thirty-one".