21513415200141 has 32 divisors (see below), whose sum is σ = 31692887228160. Its totient is φ = 12911517425664.

The previous prime is 21513415200131. The next prime is 21513415200149. The reversal of 21513415200141 is 14100251431512.

It is not a de Polignac number, because 21513415200141 - 2¹⁰ = 21513415199117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21513415200099 and 21513415200108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21513415200149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116655381 + ... + 116839653.

It is an arithmetic number, because the mean of its divisors is an integer number (990402725880).

Almost surely, 2^{21513415200141} is an apocalyptic number.

It is an amenable number.

21513415200141 is a deficient number, since it is larger than the sum of its proper divisors (10179472028019).

21513415200141 is a wasteful number, since it uses less digits than its factorization.

21513415200141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283845.

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 21513415200141 its reverse (14100251431512), we get a palindrome (35613666631653).

The spelling of 21513415200141 in words is "twenty-one trillion, five hundred thirteen billion, four hundred fifteen million, two hundred thousand, one hundred forty-one".