21245532314 has 8 divisors (see below), whose sum is σ = 31880291520. Its totient is φ = 10618768476.

The previous prime is 21245532313. The next prime is 21245532317. The reversal of 21245532314 is 41323554212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21245532311) 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, 1992194 + ... + 2002829.

It is an arithmetic number, because the mean of its divisors is an integer number (3985036440).

Almost surely, 2^21245532314 is an apocalyptic number.

21245532314 is a deficient number, since it is larger than the sum of its proper divisors (10634759206).

21245532314 is a wasteful number, since it uses less digits than its factorization.

21245532314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997684.

The product of its digits is 28800, while the sum is 32.

The spelling of 21245532314 in words is "twenty-one billion, two hundred forty-five million, five hundred thirty-two thousand, three hundred fourteen".