1020043103 has 8 divisors (see below), whose sum is σ = 1024807872. Its totient is φ = 1015289856.

The previous prime is 1020043067. The next prime is 1020043109. The reversal of 1020043103 is 3013400201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020043103 - 2¹⁴ = 1020026719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020043109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209351 + ... + 214167.

It is an arithmetic number, because the mean of its divisors is an integer number (128100984).

Almost surely, 2^1020043103 is an apocalyptic number.

1020043103 is a deficient number, since it is larger than the sum of its proper divisors (4764769).

1020043103 is an equidigital number, since it uses as much as digits as its factorization.

1020043103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5761.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1020043103 is about 31938.1136418543. The cubic root of 1020043103 is about 1006.6368885952.

Adding to 1020043103 its reverse (3013400201), we get a palindrome (4033443304).

The spelling of 1020043103 in words is "one billion, twenty million, forty-three thousand, one hundred three".