21233130231332 has 24 divisors (see below), whose sum is σ = 37174178844600. Its totient is φ = 10611936792576.

The previous prime is 21233130231331. The next prime is 21233130231343. The reversal of 21233130231332 is 23313203133212.

It can be written as a sum of positive squares in 4 ways, for example, as 312532430116 + 20920597801216 = 559046^2 + 4573904^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21233130231295 and 21233130231304.

It is not an unprimeable number, because it can be changed into a prime (21233130231331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196016978 + ... + 196125270.

It is an arithmetic number, because the mean of its divisors is an integer number (1548924118525).

Almost surely, 2^{21233130231332} is an apocalyptic number.

It is an amenable number.

21233130231332 is a deficient number, since it is larger than the sum of its proper divisors (15941048613268).

21233130231332 is a wasteful number, since it uses less digits than its factorization.

21233130231332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129215 (or 129213 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 21233130231332 its reverse (23313203133212), we get a palindrome (44546333364544).

The spelling of 21233130231332 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred thirty million, two hundred thirty-one thousand, three hundred thirty-two".