312013203 has 12 divisors (see below), whose sum is σ = 425925000. Its totient is φ = 203167776.

The previous prime is 312013201. The next prime is 312013211. The reversal of 312013203 is 302310213.

It is not a de Polignac number, because 312013203 - 2¹ = 312013201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312013201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22578 + ... + 33671.

It is an arithmetic number, because the mean of its divisors is an integer number (35493750).

Almost surely, 2^312013203 is an apocalyptic number.

312013203 is a deficient number, since it is larger than the sum of its proper divisors (113911797).

312013203 is an equidigital number, since it uses as much as digits as its factorization.

312013203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56338 (or 56295 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 312013203 is about 17663.8954650439. The cubic root of 312013203 is about 678.2518555971.

Adding to 312013203 its reverse (302310213), we get a palindrome (614323416).

The spelling of 312013203 in words is "three hundred twelve million, thirteen thousand, two hundred three".