21452401303 has 8 divisors (see below), whose sum is σ = 23025463488. Its totient is φ = 19913912064.

The previous prime is 21452401301. The next prime is 21452401351. The reversal of 21452401303 is 30310425412.

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

It is not a de Polignac number, because 21452401303 - 2¹ = 21452401301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21452401301) 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, 8641951 + ... + 8644432.

It is an arithmetic number, because the mean of its divisors is an integer number (2878182936).

Almost surely, 2^21452401303 is an apocalyptic number.

21452401303 is a deficient number, since it is larger than the sum of its proper divisors (1573062185).

21452401303 is a wasteful number, since it uses less digits than its factorization.

21452401303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17286473.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 21452401303 its reverse (30310425412), we get a palindrome (51762826715).

The spelling of 21452401303 in words is "twenty-one billion, four hundred fifty-two million, four hundred one thousand, three hundred three".