21200110030331 has 2 divisors, whose sum is σ = 21200110030332. Its totient is φ = 21200110030330.

The previous prime is 21200110030301. The next prime is 21200110030369. The reversal of 21200110030331 is 13303001100212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21200110030331 is a prime.

It is a super-2 number, since 2×21200110030331² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21200110030301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600055015165 + 10600055015166.

It is an arithmetic number, because the mean of its divisors is an integer number (10600055015166).

Almost surely, 2^{21200110030331} is an apocalyptic number.

21200110030331 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200110030331 is an equidigital number, since it uses as much as digits as its factorization.

21200110030331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21200110030331 its reverse (13303001100212), we get a palindrome (34503111130543).

The spelling of 21200110030331 in words is "twenty-one trillion, two hundred billion, one hundred ten million, thirty thousand, three hundred thirty-one".