231121212200132 has 6 divisors (see below), whose sum is σ = 404462121350238. Its totient is φ = 115560606100064.

The previous prime is 231121212200113. The next prime is 231121212200147. The reversal of 231121212200132 is 231002212121132.

It can be written as a sum of positive squares in only one way, i.e., 215729823809536 + 15391388390596 = 14687744^2 + 3923186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231121212200098 and 231121212200107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28890151525013 + ... + 28890151525020.

It is an arithmetic number, because the mean of its divisors is an integer number (67410353558373).

Almost surely, 2^{231121212200132} is an apocalyptic number.

It is an amenable number.

231121212200132 is a deficient number, since it is larger than the sum of its proper divisors (173340909150106).

231121212200132 is a wasteful number, since it uses less digits than its factorization.

231121212200132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57780303050037 (or 57780303050035 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 231121212200132 its reverse (231002212121132), we get a palindrome (462123424321264).

The spelling of 231121212200132 in words is "two hundred thirty-one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred thousand, one hundred thirty-two".