312113203 has 4 divisors (see below), whose sum is σ = 312160608. Its totient is φ = 312065800.

The previous prime is 312113189. The next prime is 312113267. The reversal of 312113203 is 302311213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302311213 = 10453 ⋅28921.

It is a cyclic number.

It is not a de Polignac number, because 312113203 - 2²¹ = 310016051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312113293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11851 + ... + 27652.

It is an arithmetic number, because the mean of its divisors is an integer number (78040152).

Almost surely, 2^312113203 is an apocalyptic number.

312113203 is a deficient number, since it is larger than the sum of its proper divisors (47405).

312113203 is an equidigital number, since it uses as much as digits as its factorization.

312113203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47404.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 312113203 is about 17666.7258709700. The cubic root of 312113203 is about 678.3243075962.

Adding to 312113203 its reverse (302311213), we get a palindrome (614424416).

The spelling of 312113203 in words is "three hundred twelve million, one hundred thirteen thousand, two hundred three".