20111000001121 has 8 divisors (see below), whose sum is σ = 20251502146304. Its totient is φ = 19970594128800.

The previous prime is 20111000001101. The next prime is 20111000001167. The reversal of 20111000001121 is 12110000011102.

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 20111000001121 - 2¹³ = 20110999992929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20111000001098 and 20111000001107.

It is not an unprimeable number, because it can be changed into a prime (20111000001101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23648940 + ... + 24484573.

It is an arithmetic number, because the mean of its divisors is an integer number (2531437768288).

Almost surely, 2^{20111000001121} is an apocalyptic number.

It is an amenable number.

20111000001121 is a deficient number, since it is larger than the sum of its proper divisors (140502145183).

20111000001121 is a wasteful number, since it uses less digits than its factorization.

20111000001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48136431.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20111000001121 its reverse (12110000011102), we get a palindrome (32221000012223).

The spelling of 20111000001121 in words is "twenty trillion, one hundred eleven billion, one thousand, one hundred twenty-one".