21334301440234 has 4 divisors (see below), whose sum is σ = 32001452160354. Its totient is φ = 10667150720116.

The previous prime is 21334301440223. The next prime is 21334301440237. The reversal of 21334301440234 is 43204410343312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14965315461009 + 6368985979225 = 3868503^2 + 2523685^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21334301440234.

It is not an unprimeable number, because it can be changed into a prime (21334301440237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333575360057 + ... + 5333575360060.

Almost surely, 2^{21334301440234} is an apocalyptic number.

21334301440234 is a deficient number, since it is larger than the sum of its proper divisors (10667150720120).

21334301440234 is a wasteful number, since it uses less digits than its factorization.

21334301440234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10667150720119.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 21334301440234 its reverse (43204410343312), we get a palindrome (64538711783546).

The spelling of 21334301440234 in words is "twenty-one trillion, three hundred thirty-four billion, three hundred one million, four hundred forty thousand, two hundred thirty-four".