20053421453015 has 8 divisors (see below), whose sum is σ = 24714486980160. Its totient is φ = 15609149671392.

The previous prime is 20053421452943. The next prime is 20053421453029. The reversal of 20053421453015 is 51035412435002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20053421453015 - 2³⁰ = 20052347711191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54198436175 + ... + 54198436544.

It is an arithmetic number, because the mean of its divisors is an integer number (3089310872520).

Almost surely, 2^{20053421453015} is an apocalyptic number.

20053421453015 is a deficient number, since it is larger than the sum of its proper divisors (4661065527145).

20053421453015 is a wasteful number, since it uses less digits than its factorization.

20053421453015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108396872761.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20053421453015 its reverse (51035412435002), we get a palindrome (71088833888017).

The spelling of 20053421453015 in words is "twenty trillion, fifty-three billion, four hundred twenty-one million, four hundred fifty-three thousand, fifteen".