1020103111 has 4 divisors (see below), whose sum is σ = 1021871632. Its totient is φ = 1018334592.

The previous prime is 1020103067. The next prime is 1020103127. The reversal of 1020103111 is 1113010201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020103111 - 2⁹ = 1020102599 is a prime.

It is a super-2 number, since 2×1020103111² = 2081220714143756642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020103151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883395 + ... + 884548.

It is an arithmetic number, because the mean of its divisors is an integer number (255467908).

Almost surely, 2^1020103111 is an apocalyptic number.

1020103111 is a deficient number, since it is larger than the sum of its proper divisors (1768521).

1020103111 is an equidigital number, since it uses as much as digits as its factorization.

1020103111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768520.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1020103111 is about 31939.0530698704. The cubic root of 1020103111 is about 1006.6566279839.

Adding to 1020103111 its reverse (1113010201), we get a palindrome (2133113312).

The spelling of 1020103111 in words is "one billion, twenty million, one hundred three thousand, one hundred eleven".