3123312303 has 4 divisors (see below), whose sum is σ = 4164416408. Its totient is φ = 2082208200.

The previous prime is 3123312299. The next prime is 3123312319. The reversal of 3123312303 is 3032133213.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3123312303 - 2² = 3123312299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3123312303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123312343) 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, 520552048 + ... + 520552053.

It is an arithmetic number, because the mean of its divisors is an integer number (1041104102).

Almost surely, 2^3123312303 is an apocalyptic number.

3123312303 is a deficient number, since it is larger than the sum of its proper divisors (1041104105).

3123312303 is a wasteful number, since it uses less digits than its factorization.

3123312303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041104104.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 3123312303 is about 55886.6021779818. The cubic root of 3123312303 is about 1461.7456293939.

Adding to 3123312303 its reverse (3032133213), we get a palindrome (6155445516).

The spelling of 3123312303 in words is "three billion, one hundred twenty-three million, three hundred twelve thousand, three hundred three".