1102123111 has 2 divisors, whose sum is σ = 1102123112. Its totient is φ = 1102123110.

The previous prime is 1102123103. The next prime is 1102123117. The reversal of 1102123111 is 1113212011.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1113212011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1102123111 - 2³ = 1102123103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102123091 and 1102123100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102123117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551061555 + 551061556.

It is an arithmetic number, because the mean of its divisors is an integer number (551061556).

Almost surely, 2^1102123111 is an apocalyptic number.

1102123111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102123111 is an equidigital number, since it uses as much as digits as its factorization.

1102123111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1102123111 is about 33198.2395768209. The cubic root of 1102123111 is about 1032.9438235612.

Adding to 1102123111 its reverse (1113212011), we get a palindrome (2215335122).

Subtracting 1102123111 from its reverse (1113212011), we obtain a square (11088900 = 3330²).

The spelling of 1102123111 in words is "one billion, one hundred two million, one hundred twenty-three thousand, one hundred eleven".