20424140221413 has 64 divisors (see below), whose sum is σ = 27798762765312. Its totient is φ = 13336654924800.

The previous prime is 20424140221411. The next prime is 20424140221417. The reversal of 20424140221413 is 31412204142402.

It is not a de Polignac number, because 20424140221413 - 2¹ = 20424140221411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424140221411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12553250706 + ... + 12553252332.

It is an arithmetic number, because the mean of its divisors is an integer number (434355668208).

Almost surely, 2^{20424140221413} is an apocalyptic number.

It is an amenable number.

20424140221413 is a deficient number, since it is larger than the sum of its proper divisors (7374622543899).

20424140221413 is a wasteful number, since it uses less digits than its factorization.

20424140221413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 20424140221413 its reverse (31412204142402), we get a palindrome (51836344363815).

The spelling of 20424140221413 in words is "twenty trillion, four hundred twenty-four billion, one hundred forty million, two hundred twenty-one thousand, four hundred thirteen".