21134040300244 has 48 divisors (see below), whose sum is σ = 37886683177728. Its totient is φ = 10309823129088.

The previous prime is 21134040300173. The next prime is 21134040300253. The reversal of 21134040300244 is 44200304043112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1462859829 + ... + 1462874275.

It is an arithmetic number, because the mean of its divisors is an integer number (789305899536).

Almost surely, 2^{21134040300244} is an apocalyptic number.

It is an amenable number.

21134040300244 is a deficient number, since it is larger than the sum of its proper divisors (16752642877484).

21134040300244 is a wasteful number, since it uses less digits than its factorization.

21134040300244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23344 (or 23342 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21134040300244 its reverse (44200304043112), we get a palindrome (65334344343356).

The spelling of 21134040300244 in words is "twenty-one trillion, one hundred thirty-four billion, forty million, three hundred thousand, two hundred forty-four".