20103002191 has 2 divisors, whose sum is σ = 20103002192. Its totient is φ = 20103002190.

The previous prime is 20103002167. The next prime is 20103002219. The reversal of 20103002191 is 19120030102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20103002191 - 2⁹ = 20103001679 is a prime.

It is a super-3 number, since 3×20103002191³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20103002891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051501095 + 10051501096.

It is an arithmetic number, because the mean of its divisors is an integer number (10051501096).

Almost surely, 2^20103002191 is an apocalyptic number.

20103002191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103002191 is an equidigital number, since it uses as much as digits as its factorization.

20103002191 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 19.

Adding to 20103002191 its reverse (19120030102), we get a palindrome (39223032293).

The spelling of 20103002191 in words is "twenty billion, one hundred three million, two thousand, one hundred ninety-one".