1020243403 has 8 divisors (see below), whose sum is σ = 1056409200. Its totient is φ = 984143328.

The previous prime is 1020243397. The next prime is 1020243409. The reversal of 1020243403 is 3043420201.

It is an interprime number because it is at equal distance from previous prime (1020243397) and next prime (1020243409).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020243403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020243409) 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, 16300 + ... + 48022.

It is an arithmetic number, because the mean of its divisors is an integer number (132051150).

Almost surely, 2^1020243403 is an apocalyptic number.

1020243403 is a deficient number, since it is larger than the sum of its proper divisors (36165797).

1020243403 is a wasteful number, since it uses less digits than its factorization.

1020243403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32861.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1020243403 is about 31941.2492398153. The cubic root of 1020243403 is about 1006.7027734492.

Adding to 1020243403 its reverse (3043420201), we get a palindrome (4063663604).

The spelling of 1020243403 in words is "one billion, twenty million, two hundred forty-three thousand, four hundred three".