20021310103230 has 48 divisors (see below), whose sum is σ = 52239347699760. Its totient is φ = 5320150239744.

The previous prime is 20021310103181. The next prime is 20021310103259. The reversal of 20021310103230 is 3230101312002.

20021310103230 is a `hidden beast` number, since 2 + 0 + 0 + 21 + 310 + 10 + 323 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393011635 + ... + 393062574.

It is an arithmetic number, because the mean of its divisors is an integer number (1088319743745).

Almost surely, 2^{20021310103230} is an apocalyptic number.

20021310103230 is an abundant number, since it is smaller than the sum of its proper divisors (32218037596530).

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

20021310103230 is a wasteful number, since it uses less digits than its factorization.

20021310103230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786074505 (or 786074502 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20021310103230 its reverse (3230101312002), we get a palindrome (23251411415232).

The spelling of 20021310103230 in words is "twenty trillion, twenty-one billion, three hundred ten million, one hundred three thousand, two hundred thirty".