20011120201123 has 8 divisors (see below), whose sum is σ = 20217599947440. Its totient is φ = 19804644119040.

The previous prime is 20011120201109. The next prime is 20011120201153. The reversal of 20011120201123 is 32110202111002.

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 20011120201123 - 2²¹ = 20011118103971 is a prime.

It is a super-2 number, since 2×20011120201123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011120201097 and 20011120201106.

It is not an unprimeable number, because it can be changed into a prime (20011120201153) 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, 10836543 + ... + 12548023.

It is an arithmetic number, because the mean of its divisors is an integer number (2527199993430).

Almost surely, 2^{20011120201123} is an apocalyptic number.

20011120201123 is a deficient number, since it is larger than the sum of its proper divisors (206479746317).

20011120201123 is a wasteful number, since it uses less digits than its factorization.

20011120201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832117.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20011120201123 its reverse (32110202111002), we get a palindrome (52121322312125).

The spelling of 20011120201123 in words is "twenty trillion, eleven billion, one hundred twenty million, two hundred one thousand, one hundred twenty-three".