30310000203 has 16 divisors (see below), whose sum is σ = 46969493760. Its totient is φ = 17026440096.

The previous prime is 30310000199. The next prime is 30310000207. The reversal of 30310000203 is 30200001303.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30310000199) and next prime (30310000207).

It is not a de Polignac number, because 30310000203 - 2² = 30310000199 is a prime.

It is a super-2 number, since 2×30310000203² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30310000207) 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, 12230400 + ... + 12232877.

It is an arithmetic number, because the mean of its divisors is an integer number (2935593360).

Almost surely, 2^30310000203 is an apocalyptic number.

30310000203 is a deficient number, since it is larger than the sum of its proper divisors (16659493557).

30310000203 is a wasteful number, since it uses less digits than its factorization.

30310000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24463346.

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 30310000203 its reverse (30200001303), we get a palindrome (60510001506).

The spelling of 30310000203 in words is "thirty billion, three hundred ten million, two hundred three", and thus it is an aban number.