312223743 has 24 divisors (see below), whose sum is σ = 486882032. Its totient is φ = 191662848.

The previous prime is 312223741. The next prime is 312223759. The reversal of 312223743 is 347322213.

It is not a de Polignac number, because 312223743 - 2¹ = 312223741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312223741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47580 + ... + 53742.

Almost surely, 2^312223743 is an apocalyptic number.

312223743 is a deficient number, since it is larger than the sum of its proper divisors (174658289).

312223743 is a wasteful number, since it uses less digits than its factorization.

312223743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615 (or 6612 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 312223743 is about 17669.8540741003. The cubic root of 312223743 is about 678.4043780300.

Adding to 312223743 its reverse (347322213), we get a palindrome (659545956).

The spelling of 312223743 in words is "three hundred twelve million, two hundred twenty-three thousand, seven hundred forty-three".