21320310102000 has 320 divisors, whose sum is σ = 84598992651264. Its totient is φ = 4498351027200.

The previous prime is 21320310101999. The next prime is 21320310102011. The reversal of 21320310102000 is 20101302312.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 63 ways as a sum of consecutive naturals, for example, 18978094 + ... + 20070093.

Almost surely, 2^{21320310102000} is an apocalyptic number.

21320310102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21320310102000 is an abundant number, since it is smaller than the sum of its proper divisors (63278682549264).

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

21320310102000 is a wasteful number, since it uses less digits than its factorization.

21320310102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39048233 (or 39048217 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21320310102000 its reverse (20101302312), we get a palindrome (21340411404312).

The spelling of 21320310102000 in words is "twenty-one trillion, three hundred twenty billion, three hundred ten million, one hundred two thousand".