21301326034 has 4 divisors (see below), whose sum is σ = 31951989054. Its totient is φ = 10650663016.

The previous prime is 21301326031. The next prime is 21301326061. The reversal of 21301326034 is 43062310312.

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

It can be written as a sum of positive squares in only one way, i.e., 18639075625 + 2662250409 = 136525^2 + 51597^2 .

It is not an unprimeable number, because it can be changed into a prime (21301326031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325331507 + ... + 5325331510.

Almost surely, 2^21301326034 is an apocalyptic number.

21301326034 is a deficient number, since it is larger than the sum of its proper divisors (10650663020).

21301326034 is a wasteful number, since it uses less digits than its factorization.

21301326034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10650663019.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21301326034 its reverse (43062310312), we get a palindrome (64363636346).

The spelling of 21301326034 in words is "twenty-one billion, three hundred one million, three hundred twenty-six thousand, thirty-four".