12131151300 has 90 divisors (see below), whose sum is σ = 39324426218. Its totient is φ = 3234971520.

The previous prime is 12131151287. The next prime is 12131151301. The reversal of 12131151300 is 315113121.

12131151300 is a `hidden beast` number, since 1 + 2 + 1 + 311 + 51 + 300 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1054430784 + 11076720516 = 32472^2 + 105246^2 .

It is a tau number, because it is divible by the number of its divisors (90).

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

It is not an unprimeable number, because it can be changed into a prime (12131151301) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 740737 + ... + 756936.

Almost surely, 2^12131151300 is an apocalyptic number.

12131151300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131151300 is an abundant number, since it is smaller than the sum of its proper divisors (27193274918).

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

12131151300 is a wasteful number, since it uses less digits than its factorization.

12131151300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497699 (or 1497683 counting only the distinct ones).

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

Adding to 12131151300 its reverse (315113121), we get a palindrome (12446264421).

The spelling of 12131151300 in words is "twelve billion, one hundred thirty-one million, one hundred fifty-one thousand, three hundred".