12151331100 has 72 divisors (see below), whose sum is σ = 39064287920. Its totient is φ = 3240354240.

The previous prime is 12151331099. The next prime is 12151331107. The reversal of 12151331100 is 113315121.

12151331100 is a `hidden beast` number, since 1 + 21 + 513 + 31 + 100 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151331107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2247547 + ... + 2252946.

Almost surely, 2^12151331100 is an apocalyptic number.

12151331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12151331100 is an abundant number, since it is smaller than the sum of its proper divisors (26912956820).

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

12151331100 is a wasteful number, since it uses less digits than its factorization.

12151331100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500516 (or 4500503 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 12151331100 its reverse (113315121), we get a palindrome (12264646221).

The spelling of 12151331100 in words is "twelve billion, one hundred fifty-one million, three hundred thirty-one thousand, one hundred".