20020131332101 has 4 divisors (see below), whose sum is σ = 20021470396704. Its totient is φ = 20018792267500.

The previous prime is 20020131332099. The next prime is 20020131332107. The reversal of 20020131332101 is 10123313102002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20020131332101 - 2¹ = 20020131332099 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 (20020131332107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669509875 + ... + 669539776.

It is an arithmetic number, because the mean of its divisors is an integer number (5005367599176).

Almost surely, 2^{20020131332101} is an apocalyptic number.

It is an amenable number.

20020131332101 is a deficient number, since it is larger than the sum of its proper divisors (1339064603).

20020131332101 is a wasteful number, since it uses less digits than its factorization.

20020131332101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339064602.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20020131332101 its reverse (10123313102002), we get a palindrome (30143444434103).

The spelling of 20020131332101 in words is "twenty trillion, twenty billion, one hundred thirty-one million, three hundred thirty-two thousand, one hundred one".