20213440413 has 8 divisors (see below), whose sum is σ = 26968726848. Its totient is φ = 13466890464.

The previous prime is 20213440409. The next prime is 20213440433. The reversal of 20213440413 is 31404431202.

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

It is not a de Polignac number, because 20213440413 - 2² = 20213440409 is a prime.

It is a super-2 number, since 2×20213440413² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213440433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2178720 + ... + 2187977.

It is an arithmetic number, because the mean of its divisors is an integer number (3371090856).

Almost surely, 2^20213440413 is an apocalyptic number.

It is an amenable number.

20213440413 is a deficient number, since it is larger than the sum of its proper divisors (6755286435).

20213440413 is a wasteful number, since it uses less digits than its factorization.

20213440413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368243.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20213440413 its reverse (31404431202), we get a palindrome (51617871615).

The spelling of 20213440413 in words is "twenty billion, two hundred thirteen million, four hundred forty thousand, four hundred thirteen".