21315532301 has 8 divisors (see below), whose sum is σ = 24443752704. Its totient is φ = 18208098000.

The previous prime is 21315532253. The next prime is 21315532313. The reversal of 21315532301 is 10323551312.

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 21315532301 - 2³⁰ = 20241790477 is a prime.

It is a super-3 number, since 3×21315532301³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21315532351) 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, 5194325 + ... + 5198426.

It is an arithmetic number, because the mean of its divisors is an integer number (3055469088).

Almost surely, 2^21315532301 is an apocalyptic number.

It is an amenable number.

21315532301 is a deficient number, since it is larger than the sum of its proper divisors (3128220403).

21315532301 is a wasteful number, since it uses less digits than its factorization.

21315532301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10393051.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 21315532301 in words is "twenty-one billion, three hundred fifteen million, five hundred thirty-two thousand, three hundred one".