312030130203 has 32 divisors (see below), whose sum is σ = 504438654720. Its totient is φ = 189053844480.

The previous prime is 312030130199. The next prime is 312030130211. The reversal of 312030130203 is 302031030213.

312030130203 is a `hidden beast` number, since 312 + 0 + 301 + 30 + 20 + 3 = 666.

It is not a de Polignac number, because 312030130203 - 2² = 312030130199 is a prime.

It is a super-2 number, since 2×312030130203² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312030130253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 874776 + ... + 1178682.

It is an arithmetic number, because the mean of its divisors is an integer number (15763707960).

Almost surely, 2^312030130203 is an apocalyptic number.

312030130203 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

312030130203 is a deficient number, since it is larger than the sum of its proper divisors (192408524517).

312030130203 is a wasteful number, since it uses less digits than its factorization.

312030130203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307384 (or 307378 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 312030130203 its reverse (302031030213), we get a palindrome (614061160416).

The spelling of 312030130203 in words is "three hundred twelve billion, thirty million, one hundred thirty thousand, two hundred three".