20013141921 has 8 divisors (see below), whose sum is σ = 28088620320. Its totient is φ = 12639879072.

The previous prime is 20013141877. The next prime is 20013141923. The reversal of 20013141921 is 12914131002.

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

It is not a de Polignac number, because 20013141921 - 2²² = 20008947617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20013141891 and 20013141900.

It is not an unprimeable number, because it can be changed into a prime (20013141923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175553820 + ... + 175553933.

It is an arithmetic number, because the mean of its divisors is an integer number (3511077540).

Almost surely, 2^20013141921 is an apocalyptic number.

It is an amenable number.

20013141921 is a deficient number, since it is larger than the sum of its proper divisors (8075478399).

20013141921 is a wasteful number, since it uses less digits than its factorization.

20013141921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351107775.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 20013141921 its reverse (12914131002), we get a palindrome (32927272923).

The spelling of 20013141921 in words is "twenty billion, thirteen million, one hundred forty-one thousand, nine hundred twenty-one".