21231303000132 has 24 divisors (see below), whose sum is σ = 50474418454656. Its totient is φ = 6943570792288.

The previous prime is 21231303000119. The next prime is 21231303000137. The reversal of 21231303000132 is 23100030313212.

It is a junction number, because it is equal to n+sod(n) for n = 21231303000099 and 21231303000108.

It is not an unprimeable number, because it can be changed into a prime (21231303000137) 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, 16691275308 + ... + 16691276579.

It is an arithmetic number, because the mean of its divisors is an integer number (2103100768944).

Almost surely, 2^{21231303000132} is an apocalyptic number.

It is an amenable number.

21231303000132 is an abundant number, since it is smaller than the sum of its proper divisors (29243115454524).

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

21231303000132 is a wasteful number, since it uses less digits than its factorization.

21231303000132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33382551947 (or 33382551945 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21231303000132 its reverse (23100030313212), we get a palindrome (44331333313344).

The spelling of 21231303000132 in words is "twenty-one trillion, two hundred thirty-one billion, three hundred three million, one hundred thirty-two", and thus it is an aban number.