21452082313 has 8 divisors (see below), whose sum is σ = 22463886528. Its totient is φ = 20446870224.

The previous prime is 21452082287. The next prime is 21452082317. The reversal of 21452082313 is 31328025412.

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

It is a cyclic number.

It is not a de Polignac number, because 21452082313 - 2²⁵ = 21418527881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21452082317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1641370 + ... + 1654387.

It is an arithmetic number, because the mean of its divisors is an integer number (2807985816).

Almost surely, 2^21452082313 is an apocalyptic number.

21452082313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21452082313 is a deficient number, since it is larger than the sum of its proper divisors (1011804215).

21452082313 is a wasteful number, since it uses less digits than its factorization.

21452082313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296063.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 21452082313 in words is "twenty-one billion, four hundred fifty-two million, eighty-two thousand, three hundred thirteen".