21130342041 has 16 divisors (see below), whose sum is σ = 28447341120. Its totient is φ = 13950256320.

The previous prime is 21130342019. The next prime is 21130342043. The reversal of 21130342041 is 14024303112.

It is not a de Polignac number, because 21130342041 - 2¹³ = 21130333849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21130341999 and 21130342017.

It is not an unprimeable number, because it can be changed into a prime (21130342043) 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, 638851 + ... + 671111.

It is an arithmetic number, because the mean of its divisors is an integer number (1777958820).

Almost surely, 2^21130342041 is an apocalyptic number.

It is an amenable number.

21130342041 is a deficient number, since it is larger than the sum of its proper divisors (7316999079).

21130342041 is a wasteful number, since it uses less digits than its factorization.

21130342041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34376.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21130342041 its reverse (14024303112), we get a palindrome (35154645153).

The spelling of 21130342041 in words is "twenty-one billion, one hundred thirty million, three hundred forty-two thousand, forty-one".