20100003331 has 2 divisors, whose sum is σ = 20100003332. Its totient is φ = 20100003330.

The previous prime is 20100003317. The next prime is 20100003337. The reversal of 20100003331 is 13330000102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100003331 is a prime.

It is a super-2 number, since 2×20100003331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20100003337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050001665 + 10050001666.

It is an arithmetic number, because the mean of its divisors is an integer number (10050001666).

Almost surely, 2^20100003331 is an apocalyptic number.

20100003331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100003331 is an equidigital number, since it uses as much as digits as its factorization.

20100003331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 20100003331 its reverse (13330000102), we get a palindrome (33430003433).

The spelling of 20100003331 in words is "twenty billion, one hundred million, three thousand, three hundred thirty-one".