20011234232401 has 4 divisors (see below), whose sum is σ = 20067923281572. Its totient is φ = 19954545183232.

The previous prime is 20011234232389. The next prime is 20011234232411. The reversal of 20011234232401 is 10423243211002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6045579418176 + 13965654814225 = 2458776^2 + 3737065^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011234232401 - 2⁵ = 20011234232369 is a prime.

It is a super-3 number, since 3×20011234232401³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011234232411) 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, 28344524056 + ... + 28344524761.

It is an arithmetic number, because the mean of its divisors is an integer number (5016980820393).

Almost surely, 2^{20011234232401} is an apocalyptic number.

It is an amenable number.

20011234232401 is a deficient number, since it is larger than the sum of its proper divisors (56689049171).

20011234232401 is an equidigital number, since it uses as much as digits as its factorization.

20011234232401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56689049170.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20011234232401 its reverse (10423243211002), we get a palindrome (30434477443403).

The spelling of 20011234232401 in words is "twenty trillion, eleven billion, two hundred thirty-four million, two hundred thirty-two thousand, four hundred one".