21010310212302 has 24 divisors (see below), whose sum is σ = 45527730848184. Its totient is φ = 7002607190544.

The previous prime is 21010310212277. The next prime is 21010310212337. The reversal of 21010310212302 is 20321201301012.

21010310212302 is a `hidden beast` number, since 2 + 101 + 0 + 310 + 21 + 230 + 2 = 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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68972713 + ... + 69276660.

It is an arithmetic number, because the mean of its divisors is an integer number (1896988785341).

Almost surely, 2^{21010310212302} is an apocalyptic number.

21010310212302 is an abundant number, since it is smaller than the sum of its proper divisors (24517420635882).

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

21010310212302 is a wasteful number, since it uses less digits than its factorization.

21010310212302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138257824 (or 138257821 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21010310212302 its reverse (20321201301012), we get a palindrome (41331511513314).

The spelling of 21010310212302 in words is "twenty-one trillion, ten billion, three hundred ten million, two hundred twelve thousand, three hundred two".