20514410451121 has 16 divisors (see below), whose sum is σ = 20733145171200. Its totient is φ = 20296252695168.

The previous prime is 20514410451109. The next prime is 20514410451169. The reversal of 20514410451121 is 12115401441502.

It is a cyclic number.

It is not a de Polignac number, because 20514410451121 - 2²⁷ = 20514276233393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20514410421121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208127976 + ... + 208226518.

It is an arithmetic number, because the mean of its divisors is an integer number (1295821573200).

Almost surely, 2^{20514410451121} is an apocalyptic number.

It is an amenable number.

20514410451121 is a deficient number, since it is larger than the sum of its proper divisors (218734720079).

20514410451121 is a wasteful number, since it uses less digits than its factorization.

20514410451121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101448.

The product of its (nonzero) digits is 6400, while the sum is 31.

Adding to 20514410451121 its reverse (12115401441502), we get a palindrome (32629811892623).

The spelling of 20514410451121 in words is "twenty trillion, five hundred fourteen billion, four hundred ten million, four hundred fifty-one thousand, one hundred twenty-one".