21341200331 has 4 divisors (see below), whose sum is σ = 23281309464. Its totient is φ = 19401091200.

The previous prime is 21341200301. The next prime is 21341200339. The reversal of 21341200331 is 13300214312.

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

It is a cyclic number.

It is not a de Polignac number, because 21341200331 - 2³⁴ = 4161331147 is a prime.

It is a super-2 number, since 2×21341200331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21341200339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970054550 + ... + 970054571.

It is an arithmetic number, because the mean of its divisors is an integer number (5820327366).

Almost surely, 2^21341200331 is an apocalyptic number.

21341200331 is a deficient number, since it is larger than the sum of its proper divisors (1940109133).

21341200331 is a wasteful number, since it uses less digits than its factorization.

21341200331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940109132.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21341200331 its reverse (13300214312), we get a palindrome (34641414643).

The spelling of 21341200331 in words is "twenty-one billion, three hundred forty-one million, two hundred thousand, three hundred thirty-one".