21412130231 has 8 divisors (see below), whose sum is σ = 21918657024. Its totient is φ = 20905993080.

The previous prime is 21412130219. The next prime is 21412130261. The reversal of 21412130231 is 13203121412.

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

It is a cyclic number.

It is not a de Polignac number, because 21412130231 - 2⁶ = 21412130167 is a prime.

It is a super-2 number, since 2×21412130231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412130261) 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, 15320 + ... + 207506.

It is an arithmetic number, because the mean of its divisors is an integer number (2739832128).

Almost surely, 2^21412130231 is an apocalyptic number.

21412130231 is a deficient number, since it is larger than the sum of its proper divisors (506526793).

21412130231 is a wasteful number, since it uses less digits than its factorization.

21412130231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194821.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21412130231 its reverse (13203121412), we get a palindrome (34615251643).

The spelling of 21412130231 in words is "twenty-one billion, four hundred twelve million, one hundred thirty thousand, two hundred thirty-one".