20401104001 has 4 divisors (see below), whose sum is σ = 20401390000. Its totient is φ = 20400818004.

The previous prime is 20401103977. The next prime is 20401104007. The reversal of 20401104001 is 10040110402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20401104001 - 2⁵ = 20401103969 is a prime.

It is a super-4 number, since 4×20401104001⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20401104007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61150 + ... + 211048.

It is an arithmetic number, because the mean of its divisors is an integer number (5100347500).

Almost surely, 2^20401104001 is an apocalyptic number.

It is an amenable number.

20401104001 is a deficient number, since it is larger than the sum of its proper divisors (285999).

20401104001 is a wasteful number, since it uses less digits than its factorization.

20401104001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285998.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20401104001 its reverse (10040110402), we get a palindrome (30441214403).

The spelling of 20401104001 in words is "twenty billion, four hundred one million, one hundred four thousand, one".