102111200202091 has 2 divisors, whose sum is σ = 102111200202092. Its totient is φ = 102111200202090.

The previous prime is 102111200201963. The next prime is 102111200202157. The reversal of 102111200202091 is 190202002111201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102111200202091 - 2⁷ = 102111200201963 is a prime.

It is a super-3 number, since 3×102111200202091³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (102111200208091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055600101045 + 51055600101046.

It is an arithmetic number, because the mean of its divisors is an integer number (51055600101046).

Almost surely, 2^{102111200202091} is an apocalyptic number.

102111200202091 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111200202091 is an equidigital number, since it uses as much as digits as its factorization.

102111200202091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 102111200202091 its reverse (190202002111201), we get a palindrome (292313202313292).

The spelling of 102111200202091 in words is "one hundred two trillion, one hundred eleven billion, two hundred million, two hundred two thousand, ninety-one".