21114412304 has 20 divisors (see below), whose sum is σ = 42014828364. Its totient is φ = 10271875968.

The previous prime is 21114412271. The next prime is 21114412309. The reversal of 21114412304 is 40321441112.

It can be written as a sum of positive squares in 2 ways, for example, as 19141275904 + 1973136400 = 138352^2 + 44420^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21114412304.

It is not an unprimeable number, because it can be changed into a prime (21114412309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17832527 + ... + 17833710.

Almost surely, 2^21114412304 is an apocalyptic number.

It is an amenable number.

21114412304 is a deficient number, since it is larger than the sum of its proper divisors (20900416060).

21114412304 is a wasteful number, since it uses less digits than its factorization.

21114412304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35666282 (or 35666276 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21114412304 its reverse (40321441112), we get a palindrome (61435853416).

The spelling of 21114412304 in words is "twenty-one billion, one hundred fourteen million, four hundred twelve thousand, three hundred four".