21030113141 has 2 divisors, whose sum is σ = 21030113142. Its totient is φ = 21030113140.

The previous prime is 21030113123. The next prime is 21030113147. The reversal of 21030113141 is 14131103012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15140318116 + 5889795025 = 123046^2 + 76745^2 .

It is a cyclic number.

It is not a de Polignac number, because 21030113141 - 2¹⁴ = 21030096757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21030113147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515056570 + 10515056571.

It is an arithmetic number, because the mean of its divisors is an integer number (10515056571).

Almost surely, 2^21030113141 is an apocalyptic number.

It is an amenable number.

21030113141 is a deficient number, since it is larger than the sum of its proper divisors (1).

21030113141 is an equidigital number, since it uses as much as digits as its factorization.

21030113141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21030113141 its reverse (14131103012), we get a palindrome (35161216153).

The spelling of 21030113141 in words is "twenty-one billion, thirty million, one hundred thirteen thousand, one hundred forty-one".