1102002111 has 24 divisors (see below), whose sum is σ = 1899144240. Its totient is φ = 629714736.

The previous prime is 1102002089. The next prime is 1102002133. The reversal of 1102002111 is 1112002011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1102002089) and next prime (1102002133).

It is not a de Polignac number, because 1102002111 - 2⁷ = 1102001983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1102002093 and 1102002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102001111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415156 + ... + 417801.

It is an arithmetic number, because the mean of its divisors is an integer number (79131010).

Almost surely, 2^1102002111 is an apocalyptic number.

1102002111 is a deficient number, since it is larger than the sum of its proper divisors (797142129).

1102002111 is an equidigital number, since it uses as much as digits as its factorization.

1102002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832980 (or 832967 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1102002111 is about 33196.4171410109. The cubic root of 1102002111 is about 1032.9060205319.

Adding to 1102002111 its reverse (1112002011), we get a palindrome (2214004122).

The spelling of 1102002111 in words is "one billion, one hundred two million, two thousand, one hundred eleven".