1630520203 has 16 divisors (see below), whose sum is σ = 1774041696. Its totient is φ = 1489662720.

The previous prime is 1630520149. The next prime is 1630520251. The reversal of 1630520203 is 3020250361.

It is not a de Polignac number, because 1630520203 - 2¹³ = 1630512011 is a prime.

It is a super-2 number, since 2×1630520203² = 5317192264782322418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1630520293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572100 + ... + 574942.

It is an arithmetic number, because the mean of its divisors is an integer number (110877606).

Almost surely, 2^1630520203 is an apocalyptic number.

1630520203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1630520203 is a deficient number, since it is larger than the sum of its proper divisors (143521493).

1630520203 is a wasteful number, since it uses less digits than its factorization.

1630520203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1630520203 is about 40379.7003827418. The cubic root of 1630520203 is about 1176.9971053736.

Adding to 1630520203 its reverse (3020250361), we get a palindrome (4650770564).

The spelling of 1630520203 in words is "one billion, six hundred thirty million, five hundred twenty thousand, two hundred three".