21412340131 has 8 divisors (see below), whose sum is σ = 26353649504. Its totient is φ = 16941631680.

The previous prime is 21412340069. The next prime is 21412340137. The reversal of 21412340131 is 13104321412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21412340131 is a prime.

It is a super-2 number, since 2×21412340131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21412340137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117650130 + ... + 117650311.

It is an arithmetic number, because the mean of its divisors is an integer number (3294206188).

Almost surely, 2^21412340131 is an apocalyptic number.

21412340131 is a deficient number, since it is larger than the sum of its proper divisors (4941309373).

21412340131 is a wasteful number, since it uses less digits than its factorization.

21412340131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235300461.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21412340131 its reverse (13104321412), we get a palindrome (34516661543).

The spelling of 21412340131 in words is "twenty-one billion, four hundred twelve million, three hundred forty thousand, one hundred thirty-one".