21131230341 has 16 divisors (see below), whose sum is σ = 30349408320. Its totient is φ = 13000778880.

The previous prime is 21131230303. The next prime is 21131230363. The reversal of 21131230341 is 14303213112.

It is not a de Polignac number, because 21131230341 - 2¹³ = 21131222149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21131230441) 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, 110506 + ... + 233396.

It is an arithmetic number, because the mean of its divisors is an integer number (1896838020).

Almost surely, 2^21131230341 is an apocalyptic number.

It is an amenable number.

21131230341 is a deficient number, since it is larger than the sum of its proper divisors (9218177979).

21131230341 is a wasteful number, since it uses less digits than its factorization.

21131230341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127316.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21131230341 its reverse (14303213112), we get a palindrome (35434443453).

The spelling of 21131230341 in words is "twenty-one billion, one hundred thirty-one million, two hundred thirty thousand, three hundred forty-one".