21300335354 has 4 divisors (see below), whose sum is σ = 31950503034. Its totient is φ = 10650167676.

The previous prime is 21300335341. The next prime is 21300335369. The reversal of 21300335354 is 45353300312.

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., 13258371025 + 8041964329 = 115145^2 + 89677^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325083837 + ... + 5325083840.

Almost surely, 2^21300335354 is an apocalyptic number.

21300335354 is a deficient number, since it is larger than the sum of its proper divisors (10650167680).

21300335354 is a wasteful number, since it uses less digits than its factorization.

21300335354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10650167679.

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 21300335354 its reverse (45353300312), we get a palindrome (66653635666).

The spelling of 21300335354 in words is "twenty-one billion, three hundred million, three hundred thirty-five thousand, three hundred fifty-four".