20114004021 has 4 divisors (see below), whose sum is σ = 26818672032. Its totient is φ = 13409336012.

The previous prime is 20114003989. The next prime is 20114004037. The reversal of 20114004021 is 12040041102.

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.

It is a cyclic number.

It is not a de Polignac number, because 20114004021 - 2⁵ = 20114003989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154004021) 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, 3352334001 + ... + 3352334006.

It is an arithmetic number, because the mean of its divisors is an integer number (6704668008).

Almost surely, 2^20114004021 is an apocalyptic number.

It is an amenable number.

20114004021 is a deficient number, since it is larger than the sum of its proper divisors (6704668011).

20114004021 is an equidigital number, since it uses as much as digits as its factorization.

20114004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704668010.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20114004021 its reverse (12040041102), we get a palindrome (32154045123).

The spelling of 20114004021 in words is "twenty billion, one hundred fourteen million, four thousand, twenty-one".