21003311301 has 32 divisors (see below), whose sum is σ = 33275289600. Its totient is φ = 11531125440.

The previous prime is 21003311297. The next prime is 21003311309. The reversal of 21003311301 is 10311330012.

It is not a de Polignac number, because 21003311301 - 2² = 21003311297 is a prime.

It is a super-2 number, since 2×21003311301² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003311309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25566 + ... + 206543.

It is an arithmetic number, because the mean of its divisors is an integer number (1039852800).

Almost surely, 2^21003311301 is an apocalyptic number.

21003311301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21003311301 is a deficient number, since it is larger than the sum of its proper divisors (12271978299).

21003311301 is a wasteful number, since it uses less digits than its factorization.

21003311301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232289.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21003311301 its reverse (10311330012), we get a palindrome (31314641313).

The spelling of 21003311301 in words is "twenty-one billion, three million, three hundred eleven thousand, three hundred one".