312321303011 has 4 divisors (see below), whose sum is σ = 314568219000. Its totient is φ = 310074387024.

The previous prime is 312321302999. The next prime is 312321303053. The reversal of 312321303011 is 110303123213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312321303011 is a prime.

It is a super-2 number, since 2×312321303011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312321305011) 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, 1123457786 + ... + 1123458063.

It is an arithmetic number, because the mean of its divisors is an integer number (78642054750).

Almost surely, 2^312321303011 is an apocalyptic number.

312321303011 is a deficient number, since it is larger than the sum of its proper divisors (2246915989).

312321303011 is a wasteful number, since it uses less digits than its factorization.

312321303011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246915988.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 312321303011 its reverse (110303123213), we get a palindrome (422624426224).

The spelling of 312321303011 in words is "three hundred twelve billion, three hundred twenty-one million, three hundred three thousand, eleven".