102133111 has 2 divisors, whose sum is σ = 102133112. Its totient is φ = 102133110.

The previous prime is 102133081. The next prime is 102133123. The reversal of 102133111 is 111331201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102133111 - 2⁵ = 102133079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102133091 and 102133100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102133211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51066555 + 51066556.

It is an arithmetic number, because the mean of its divisors is an integer number (51066556).

Almost surely, 2^102133111 is an apocalyptic number.

102133111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102133111 is an equidigital number, since it uses as much as digits as its factorization.

102133111 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 13.

The square root of 102133111 is about 10106.0927662475. The cubic root of 102133111 is about 467.4360323127.

Adding to 102133111 its reverse (111331201), we get a palindrome (213464312).

The spelling of 102133111 in words is "one hundred two million, one hundred thirty-three thousand, one hundred eleven".