21103101000331 has 12 divisors (see below), whose sum is σ = 24884786143272. Its totient is φ = 17840586361248.

The previous prime is 21103101000313. The next prime is 21103101000361. The reversal of 21103101000331 is 13300010130112.

It is not a de Polignac number, because 21103101000331 - 2⁷ = 21103101000203 is a prime.

It is a super-2 number, since 2×21103101000331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21103101000361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2949828825 + ... + 2949835978.

It is an arithmetic number, because the mean of its divisors is an integer number (2073732178606).

Almost surely, 2^{21103101000331} is an apocalyptic number.

21103101000331 is a deficient number, since it is larger than the sum of its proper divisors (3781685142941).

21103101000331 is an equidigital number, since it uses as much as digits as its factorization.

21103101000331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5899664890 (or 5899664883 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 21103101000331 its reverse (13300010130112), we get a palindrome (34403111130443).

The spelling of 21103101000331 in words is "twenty-one trillion, one hundred three billion, one hundred one million, three hundred thirty-one", and thus it is an aban number.