21141302109 has 16 divisors (see below), whose sum is σ = 29796172800. Its totient is φ = 13296524976.

The previous prime is 21141302059. The next prime is 21141302111. The reversal of 21141302109 is 90120314112.

It is not a de Polignac number, because 21141302109 - 2¹³ = 21141293917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141302009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762319 + ... + 789564.

It is an arithmetic number, because the mean of its divisors is an integer number (1862260800).

Almost surely, 2^21141302109 is an apocalyptic number.

It is an amenable number.

21141302109 is a deficient number, since it is larger than the sum of its proper divisors (8654870691).

21141302109 is a wasteful number, since it uses less digits than its factorization.

21141302109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552144.

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

The spelling of 21141302109 in words is "twenty-one billion, one hundred forty-one million, three hundred two thousand, one hundred nine".