20013114012421 has 4 divisors (see below), whose sum is σ = 20135893853152. Its totient is φ = 19890334171692.

The previous prime is 20013114012383. The next prime is 20013114012443. The reversal of 20013114012421 is 12421041131002.

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 20013114012421 - 2²⁵ = 20013080457989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013114012392 and 20013114012401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013114012491) 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, 61389920121 + ... + 61389920446.

It is an arithmetic number, because the mean of its divisors is an integer number (5033973463288).

Almost surely, 2^{20013114012421} is an apocalyptic number.

It is an amenable number.

20013114012421 is a deficient number, since it is larger than the sum of its proper divisors (122779840731).

20013114012421 is a wasteful number, since it uses less digits than its factorization.

20013114012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122779840730.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 20013114012421 its reverse (12421041131002), we get a palindrome (32434155143423).

The spelling of 20013114012421 in words is "twenty trillion, thirteen billion, one hundred fourteen million, twelve thousand, four hundred twenty-one".