21101231303000 has 32 divisors (see below), whose sum is σ = 49376881251360. Its totient is φ = 8440492520800.

The previous prime is 21101231302967. The next prime is 21101231303027. The reversal of 21101231303000 is 30313210112.

It is a self number, because there is not a number n which added to its sum of digits gives 21101231303000.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 10550614652 + ... + 10550616651.

It is an arithmetic number, because the mean of its divisors is an integer number (1543027539105).

Almost surely, 2^{21101231303000} is an apocalyptic number.

21101231303000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21101231303000 is an abundant number, since it is smaller than the sum of its proper divisors (28275649948360).

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

21101231303000 is a wasteful number, since it uses less digits than its factorization.

21101231303000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21101231324 (or 21101231310 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21101231303000 its reverse (30313210112), we get a palindrome (21131544513112).

The spelling of 21101231303000 in words is "twenty-one trillion, one hundred one billion, two hundred thirty-one million, three hundred three thousand".