312023011 has 4 divisors (see below), whose sum is σ = 312231024. Its totient is φ = 311815000.

The previous prime is 312023009. The next prime is 312023027. The reversal of 312023011 is 110320213.

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

It is a cyclic number.

It is not a de Polignac number, because 312023011 - 2¹ = 312023009 is a prime.

It is a super-2 number, since 2×312023011² = 194716718787012242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312022982 and 312023000.

It is not an unprimeable number, because it can be changed into a prime (312023051) 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, 101740 + ... + 104761.

It is an arithmetic number, because the mean of its divisors is an integer number (78057756).

Almost surely, 2^312023011 is an apocalyptic number.

312023011 is a deficient number, since it is larger than the sum of its proper divisors (208013).

312023011 is a wasteful number, since it uses less digits than its factorization.

312023011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208012.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 312023011 is about 17664.1730913168. The cubic root of 312023011 is about 678.2589623738.

Adding to 312023011 its reverse (110320213), we get a palindrome (422343224).

The spelling of 312023011 in words is "three hundred twelve million, twenty-three thousand, eleven".