21141303413 has 4 divisors (see below), whose sum is σ = 21168653868. Its totient is φ = 21113952960.

The previous prime is 21141303383. The next prime is 21141303433. The reversal of 21141303413 is 31430314112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1704203524 + 19437099889 = 41282^2 + 139417^2 .

It is a cyclic number.

It is not a de Polignac number, because 21141303413 - 2¹² = 21141299317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141303433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13674068 + ... + 13675613.

It is an arithmetic number, because the mean of its divisors is an integer number (5292163467).

Almost surely, 2^21141303413 is an apocalyptic number.

It is an amenable number.

21141303413 is a deficient number, since it is larger than the sum of its proper divisors (27350455).

21141303413 is an equidigital number, since it uses as much as digits as its factorization.

21141303413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27350454.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21141303413 its reverse (31430314112), we get a palindrome (52571617525).

The spelling of 21141303413 in words is "twenty-one billion, one hundred forty-one million, three hundred three thousand, four hundred thirteen".