21476030341 has 4 divisors (see below), whose sum is σ = 21539757772. Its totient is φ = 21412302912.

The previous prime is 21476030321. The next prime is 21476030383. The reversal of 21476030341 is 14303067412.

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 4013729316 + 17462301025 = 63354^2 + 132145^2 .

It is a cyclic number.

It is not a de Polignac number, because 21476030341 - 2³¹ = 19328546693 is a prime.

It is a super-2 number, since 2×21476030341² (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 (21476030311) 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, 31863210 + ... + 31863883.

It is an arithmetic number, because the mean of its divisors is an integer number (5384939443).

Almost surely, 2^21476030341 is an apocalyptic number.

It is an amenable number.

21476030341 is a deficient number, since it is larger than the sum of its proper divisors (63727431).

21476030341 is an equidigital number, since it uses as much as digits as its factorization.

21476030341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63727430.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 21476030341 its reverse (14303067412), we get a palindrome (35779097753).

The spelling of 21476030341 in words is "twenty-one billion, four hundred seventy-six million, thirty thousand, three hundred forty-one".