21341324104 has 8 divisors (see below), whose sum is σ = 40014982710. Its totient is φ = 10670662048.

The previous prime is 21341324047. The next prime is 21341324107. The reversal of 21341324104 is 40142314312.

It can be written as a sum of positive squares in only one way, i.e., 21315416004 + 25908100 = 145998^2 + 5090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×21341324104² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21341324107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333832749 + ... + 1333832764.

Almost surely, 2^21341324104 is an apocalyptic number.

It is an amenable number.

21341324104 is a deficient number, since it is larger than the sum of its proper divisors (18673658606).

21341324104 is a wasteful number, since it uses less digits than its factorization.

21341324104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667665519 (or 2667665515 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21341324104 its reverse (40142314312), we get a palindrome (61483638416).

The spelling of 21341324104 in words is "twenty-one billion, three hundred forty-one million, three hundred twenty-four thousand, one hundred four".