1002103506 has 12 divisors (see below), whose sum is σ = 2171224302. Its totient is φ = 334034496.

The previous prime is 1002103477. The next prime is 1002103513. The reversal of 1002103506 is 6053012001.

1002103506 is a `hidden beast` number, since 100 + 210 + 350 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1001152881 + 950625 = 31641^2 + 975^2 .

It is a super-2 number, since 2×1002103506² = 2008422873474984072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 55672417 = 1002103506 / (1 + 0 + 0 + 2 + 1 + 0 + 3 + 5 + 0 + 6).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27836191 + ... + 27836226.

Almost surely, 2^1002103506 is an apocalyptic number.

1002103506 is an abundant number, since it is smaller than the sum of its proper divisors (1169120796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002103506 is a wasteful number, since it uses less digits than its factorization.

1002103506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55672425 (or 55672422 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1002103506 is about 31656.0184799036. The cubic root of 1002103506 is about 1000.7006776029.

Adding to 1002103506 its reverse (6053012001), we get a palindrome (7055115507).

The spelling of 1002103506 in words is "one billion, two million, one hundred three thousand, five hundred six".