20020112020091 has 8 divisors (see below), whose sum is σ = 20043318901200. Its totient is φ = 19996909241760.

The previous prime is 20020112020067. The next prime is 20020112020109. The reversal of 20020112020091 is 19002021102002.

It is a happy number.

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 20020112020091 - 2²² = 20020107825787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020112080091) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8793680 + ... + 10833698.

It is an arithmetic number, because the mean of its divisors is an integer number (2505414862650).

Almost surely, 2^{20020112020091} is an apocalyptic number.

20020112020091 is a deficient number, since it is larger than the sum of its proper divisors (23206881109).

20020112020091 is a wasteful number, since it uses less digits than its factorization.

20020112020091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051389.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20020112020091 its reverse (19002021102002), we get a palindrome (39022133122093).

The spelling of 20020112020091 in words is "twenty trillion, twenty billion, one hundred twelve million, twenty thousand, ninety-one".