12131311332200 has 48 divisors (see below), whose sum is σ = 28351440382380. Its totient is φ = 4827381903360.

The previous prime is 12131311332137. The next prime is 12131311332311. The reversal of 12131311332200 is 223311313121.

It can be written as a sum of positive squares in 6 ways, for example, as 5493464066596 + 6637847265604 = 2343814^2 + 2576402^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157102739 + ... + 157179938.

Almost surely, 2^{12131311332200} is an apocalyptic number.

12131311332200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131311332200 is an abundant number, since it is smaller than the sum of its proper divisors (16220129050180).

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

12131311332200 is a wasteful number, since it uses less digits than its factorization.

12131311332200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314282886 (or 314282877 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12131311332200 its reverse (223311313121), we get a palindrome (12354622645321).

The spelling of 12131311332200 in words is "twelve trillion, one hundred thirty-one billion, three hundred eleven million, three hundred thirty-two thousand, two hundred".