21445102431314 has 4 divisors (see below), whose sum is σ = 32167653646974. Its totient is φ = 10722551215656.

The previous prime is 21445102431307. The next prime is 21445102431329. The reversal of 21445102431314 is 41313420154412.

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., 11328777930625 + 10116324500689 = 3365825^2 + 3180617^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5361275607827 + ... + 5361275607830.

Almost surely, 2^{21445102431314} is an apocalyptic number.

21445102431314 is a deficient number, since it is larger than the sum of its proper divisors (10722551215660).

21445102431314 is a wasteful number, since it uses less digits than its factorization.

21445102431314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10722551215659.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 21445102431314 its reverse (41313420154412), we get a palindrome (62758522585726).

The spelling of 21445102431314 in words is "twenty-one trillion, four hundred forty-five billion, one hundred two million, four hundred thirty-one thousand, three hundred fourteen".