20011120001 has 8 divisors (see below), whose sum is σ = 20216563200. Its totient is φ = 19805820400.

The previous prime is 20011119983. The next prime is 20011120021. The reversal of 20011120001 is 10002111002.

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 20011120001 - 2¹⁸ = 20010857857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011120021) 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, 256370 + ... + 325188.

It is an arithmetic number, because the mean of its divisors is an integer number (2527070400).

Almost surely, 2^20011120001 is an apocalyptic number.

It is an amenable number.

20011120001 is a deficient number, since it is larger than the sum of its proper divisors (205443199).

20011120001 is a wasteful number, since it uses less digits than its factorization.

20011120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71799.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20011120001 its reverse (10002111002), we get a palindrome (30013231003).

The spelling of 20011120001 in words is "twenty billion, eleven million, one hundred twenty thousand, one".