312214233 has 4 divisors (see below), whose sum is σ = 416285648. Its totient is φ = 208142820.

The previous prime is 312214223. The next prime is 312214247. The reversal of 312214233 is 332412213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 312214233 - 2¹² = 312210137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312214223) 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, 52035703 + ... + 52035708.

It is an arithmetic number, because the mean of its divisors is an integer number (104071412).

Almost surely, 2^312214233 is an apocalyptic number.

It is an amenable number.

312214233 is a deficient number, since it is larger than the sum of its proper divisors (104071415).

312214233 is a wasteful number, since it uses less digits than its factorization.

312214233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104071414.

The product of its digits is 864, while the sum is 21.

The square root of 312214233 is about 17669.5849696590. The cubic root of 312214233 is about 678.3974901370.

Adding to 312214233 its reverse (332412213), we get a palindrome (644626446).

The spelling of 312214233 in words is "three hundred twelve million, two hundred fourteen thousand, two hundred thirty-three".