20021102131103 has 8 divisors (see below), whose sum is σ = 20905050246480. Its totient is φ = 19150058368000.

The previous prime is 20021102131087. The next prime is 20021102131109. The reversal of 20021102131103 is 30113120112002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20021102131103 - 2⁴ = 20021102131087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021102131109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3226084898 + ... + 3226091103.

It is an arithmetic number, because the mean of its divisors is an integer number (2613131280810).

Almost surely, 2^{20021102131103} is an apocalyptic number.

20021102131103 is a deficient number, since it is larger than the sum of its proper divisors (883948115377).

20021102131103 is a wasteful number, since it uses less digits than its factorization.

20021102131103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6452176137.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20021102131103 its reverse (30113120112002), we get a palindrome (50134222243105).

The spelling of 20021102131103 in words is "twenty trillion, twenty-one billion, one hundred two million, one hundred thirty-one thousand, one hundred three".