21331311301 has 8 divisors (see below), whose sum is σ = 21958098624. Its totient is φ = 20710465440.

The previous prime is 21331311283. The next prime is 21331311307. The reversal of 21331311301 is 10311313312.

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 21331311301 - 2²⁵ = 21297756869 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 (21331311307) 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, 1478080 + ... + 1492441.

It is an arithmetic number, because the mean of its divisors is an integer number (2744762328).

Almost surely, 2^21331311301 is an apocalyptic number.

It is an amenable number.

21331311301 is a deficient number, since it is larger than the sum of its proper divisors (626787323).

21331311301 is a wasteful number, since it uses less digits than its factorization.

21331311301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970731.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 21331311301 its reverse (10311313312), we get a palindrome (31642624613).

The spelling of 21331311301 in words is "twenty-one billion, three hundred thirty-one million, three hundred eleven thousand, three hundred one".