1002140111 has 6 divisors (see below), whose sum is σ = 1165754880. Its totient is φ = 858977196.

The previous prime is 1002140101. The next prime is 1002140129. The reversal of 1002140111 is 1110412001.

It is not a de Polignac number, because 1002140111 - 2¹⁰ = 1002139087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002140092 and 1002140101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002140101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10225871 + ... + 10225968.

It is an arithmetic number, because the mean of its divisors is an integer number (194292480).

Almost surely, 2^1002140111 is an apocalyptic number.

1002140111 is a deficient number, since it is larger than the sum of its proper divisors (163614769).

1002140111 is an equidigital number, since it uses as much as digits as its factorization.

1002140111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20451853 (or 20451846 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1002140111 is about 31656.5966427220. The cubic root of 1002140111 is about 1000.7128620403.

Adding to 1002140111 its reverse (1110412001), we get a palindrome (2112552112).

The spelling of 1002140111 in words is "one billion, two million, one hundred forty thousand, one hundred eleven".