20001330432413 has 4 divisors (see below), whose sum is σ = 21819633199008. Its totient is φ = 18183027665820.

The previous prime is 20001330432389. The next prime is 20001330432431. The reversal of 20001330432413 is 31423403310002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20001330432413 - 2¹⁶ = 20001330366877 is a prime.

It is a super-2 number, since 2×20001330432413² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001330432613) 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 3 ways as a sum of consecutive naturals, for example, 909151383281 + ... + 909151383302.

It is an arithmetic number, because the mean of its divisors is an integer number (5454908299752).

Almost surely, 2^{20001330432413} is an apocalyptic number.

It is an amenable number.

20001330432413 is a deficient number, since it is larger than the sum of its proper divisors (1818302766595).

20001330432413 is a wasteful number, since it uses less digits than its factorization.

20001330432413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818302766594.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20001330432413 its reverse (31423403310002), we get a palindrome (51424733742415).

The spelling of 20001330432413 in words is "twenty trillion, one billion, three hundred thirty million, four hundred thirty-two thousand, four hundred thirteen".