12021300231132 has 24 divisors (see below), whose sum is σ = 28051642234000. Its totient is φ = 4006822692096.

The previous prime is 12021300231131. The next prime is 12021300231163. The reversal of 12021300231132 is 23113200312021.

It is a junction number, because it is equal to n+sod(n) for n = 12021300231099 and 12021300231108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021300231131) 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, 34492507 + ... + 34839282.

Almost surely, 2^{12021300231132} is an apocalyptic number.

12021300231132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12021300231132 is an abundant number, since it is smaller than the sum of its proper divisors (16030342002868).

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

12021300231132 is a wasteful number, since it uses less digits than its factorization.

12021300231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69346245 (or 69346243 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12021300231132 its reverse (23113200312021), we get a palindrome (35134500543153).

The spelling of 12021300231132 in words is "twelve trillion, twenty-one billion, three hundred million, two hundred thirty-one thousand, one hundred thirty-two".