1020430255 has 16 divisors (see below), whose sum is σ = 1361251584. Its totient is φ = 729239040.

The previous prime is 1020430237. The next prime is 1020430309. The reversal of 1020430255 is 5520340201.

It is not a de Polignac number, because 1020430255 - 2¹¹ = 1020428207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251194 + ... + 255223.

It is an arithmetic number, because the mean of its divisors is an integer number (85078224).

Almost surely, 2^1020430255 is an apocalyptic number.

1020430255 is a deficient number, since it is larger than the sum of its proper divisors (340821329).

1020430255 is a wasteful number, since it uses less digits than its factorization.

1020430255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506466.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1020430255 is about 31944.1740384690. The cubic root of 1020430255 is about 1006.7642270670.

Adding to 1020430255 its reverse (5520340201), we get a palindrome (6540770456).

The spelling of 1020430255 in words is "one billion, twenty million, four hundred thirty thousand, two hundred fifty-five".