20021113302102 has 48 divisors (see below), whose sum is σ = 47350986106320. Its totient is φ = 6063368817600.

The previous prime is 20021113302097. The next prime is 20021113302103. The reversal of 20021113302102 is 20120331112002.

20021113302102 is a `hidden beast` number, since 20 + 0 + 211 + 1 + 330 + 2 + 102 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021113302103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29962149 + ... + 30623072.

It is an arithmetic number, because the mean of its divisors is an integer number (986478877215).

Almost surely, 2^{20021113302102} is an apocalyptic number.

20021113302102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021113302102 is an abundant number, since it is smaller than the sum of its proper divisors (27329872804218).

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

20021113302102 is a wasteful number, since it uses less digits than its factorization.

20021113302102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60586909 (or 60586906 counting only the distinct ones).

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

Adding to 20021113302102 its reverse (20120331112002), we get a palindrome (40141444414104).

The spelling of 20021113302102 in words is "twenty trillion, twenty-one billion, one hundred thirteen million, three hundred two thousand, one hundred two".