1042421503 has 8 divisors (see below), whose sum is σ = 1057795200. Its totient is φ = 1027067160.

The previous prime is 1042421473. The next prime is 1042421509. The reversal of 1042421503 is 3051242401.

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 1042421503 - 2¹³ = 1042413311 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 (1042421509) 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, 131548 + ... + 139246.

It is an arithmetic number, because the mean of its divisors is an integer number (132224400).

Almost surely, 2^1042421503 is an apocalyptic number.

1042421503 is a deficient number, since it is larger than the sum of its proper divisors (15373697).

1042421503 is an equidigital number, since it uses as much as digits as its factorization.

1042421503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9677.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1042421503 is about 32286.5529748841. The cubic root of 1042421503 is about 1013.9451303842.

Adding to 1042421503 its reverse (3051242401), we get a palindrome (4093663904).

The spelling of 1042421503 in words is "one billion, forty-two million, four hundred twenty-one thousand, five hundred three".