20013141893 has 4 divisors (see below), whose sum is σ = 20087540460. Its totient is φ = 19938743328.

The previous prime is 20013141877. The next prime is 20013141923. The reversal of 20013141893 is 39814131002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9799614049 + 10213527844 = 98993^2 + 101062^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013141893 - 2⁴ = 20013141877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013146893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37198880 + ... + 37199417.

It is an arithmetic number, because the mean of its divisors is an integer number (5021885115).

Almost surely, 2^20013141893 is an apocalyptic number.

It is an amenable number.

20013141893 is a deficient number, since it is larger than the sum of its proper divisors (74398567).

20013141893 is an equidigital number, since it uses as much as digits as its factorization.

20013141893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74398566.

The product of its (nonzero) digits is 5184, while the sum is 32.

Adding to 20013141893 its reverse (39814131002), we get a palindrome (59827272895).

The spelling of 20013141893 in words is "twenty billion, thirteen million, one hundred forty-one thousand, eight hundred ninety-three".