21341300452 has 6 divisors (see below), whose sum is σ = 37347275798. Its totient is φ = 10670650224.

The previous prime is 21341300447. The next prime is 21341300483. The reversal of 21341300452 is 25400314312.

It can be written as a sum of positive squares in only one way, i.e., 18328827456 + 3012472996 = 135384^2 + 54886^2 .

It is a super-2 number, since 2×21341300452² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2667662553 + ... + 2667662560.

Almost surely, 2^21341300452 is an apocalyptic number.

It is an amenable number.

21341300452 is a deficient number, since it is larger than the sum of its proper divisors (16005975346).

21341300452 is a wasteful number, since it uses less digits than its factorization.

21341300452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335325117 (or 5335325115 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 21341300452 its reverse (25400314312), we get a palindrome (46741614764).

The spelling of 21341300452 in words is "twenty-one billion, three hundred forty-one million, three hundred thousand, four hundred fifty-two".