21234141131 has 8 divisors (see below), whose sum is σ = 24762847200. Its totient is φ = 18200692104.

The previous prime is 21234141113. The next prime is 21234141133. The reversal of 21234141131 is 13114143212.

It is a de Polignac number, because none of the positive numbers 2^k-21234141131 is a prime.

It is a super-2 number, since 2×21234141131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21234141097 and 21234141106.

It is not an unprimeable number, because it can be changed into a prime (21234141133) 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, 30953216 + ... + 30953901.

It is an arithmetic number, because the mean of its divisors is an integer number (3095355900).

Almost surely, 2^21234141131 is an apocalyptic number.

21234141131 is a deficient number, since it is larger than the sum of its proper divisors (3528706069).

21234141131 is an frugal number, since it uses more digits than its factorization.

21234141131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61907138 (or 61907124 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 21234141131 its reverse (13114143212), we get a palindrome (34348284343).

The spelling of 21234141131 in words is "twenty-one billion, two hundred thirty-four million, one hundred forty-one thousand, one hundred thirty-one".