21341213400530 has 64 divisors (see below), whose sum is σ = 39175173227520. Its totient is φ = 8368782912000.

The previous prime is 21341213400491. The next prime is 21341213400587. The reversal of 21341213400530 is 3500431214312.

It is a super-2 number, since 2×21341213400530² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21341213400493 and 21341213400502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251863511 + ... + 251948229.

It is an arithmetic number, because the mean of its divisors is an integer number (612112081680).

Almost surely, 2^{21341213400530} is an apocalyptic number.

21341213400530 is a deficient number, since it is larger than the sum of its proper divisors (17833959826990).

21341213400530 is a wasteful number, since it uses less digits than its factorization.

21341213400530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86795.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 21341213400530 its reverse (3500431214312), we get a palindrome (24841644614842).

The spelling of 21341213400530 in words is "twenty-one trillion, three hundred forty-one billion, two hundred thirteen million, four hundred thousand, five hundred thirty".