21254432434314 has 16 divisors (see below), whose sum is σ = 42508931806560. Its totient is φ = 7084799655120.

The previous prime is 21254432434307. The next prime is 21254432434343. The reversal of 21254432434314 is 41343423445212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1961049 + ... + 6808419.

It is an arithmetic number, because the mean of its divisors is an integer number (2656808237910).

Almost surely, 2^{21254432434314} is an apocalyptic number.

21254432434314 is an abundant number, since it is smaller than the sum of its proper divisors (21254499372246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21254432434314 is a wasteful number, since it uses less digits than its factorization.

21254432434314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578165.

The product of its digits is 1105920, while the sum is 42.

Adding to 21254432434314 its reverse (41343423445212), we get a palindrome (62597855879526).

The spelling of 21254432434314 in words is "twenty-one trillion, two hundred fifty-four billion, four hundred thirty-two million, four hundred thirty-four thousand, three hundred fourteen".