10120100191 has 2 divisors, whose sum is σ = 10120100192. Its totient is φ = 10120100190.

The previous prime is 10120100189. The next prime is 10120100203. The reversal of 10120100191 is 19100102101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10120100191 - 2¹ = 10120100189 is a prime.

It is a super-3 number, since 3×10120100191³ (a number of 31 digits) contains 333 as substring.

Together with 10120100189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10120100491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060050095 + 5060050096.

It is an arithmetic number, because the mean of its divisors is an integer number (5060050096).

Almost surely, 2^10120100191 is an apocalyptic number.

10120100191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120100191 is an equidigital number, since it uses as much as digits as its factorization.

10120100191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 10120100191 its reverse (19100102101), we get a palindrome (29220202292).

The spelling of 10120100191 in words is "ten billion, one hundred twenty million, one hundred thousand, one hundred ninety-one".