312211023 has 8 divisors (see below), whose sum is σ = 426434736. Its totient is φ = 203064000.

The previous prime is 312211019. The next prime is 312211027. The reversal of 312211023 is 320112213.

It is an interprime number because it is at equal distance from previous prime (312211019) and next prime (312211027).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312211023 - 2² = 312211019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312210993 and 312211011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312211027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269028 + ... + 1269273.

It is an arithmetic number, because the mean of its divisors is an integer number (53304342).

Almost surely, 2^312211023 is an apocalyptic number.

312211023 is a deficient number, since it is larger than the sum of its proper divisors (114223713).

312211023 is a wasteful number, since it uses less digits than its factorization.

312211023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538345.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 312211023 is about 17669.4941353735. The cubic root of 312211023 is about 678.3951651700.

Adding to 312211023 its reverse (320112213), we get a palindrome (632323236).

The spelling of 312211023 in words is "three hundred twelve million, two hundred eleven thousand, twenty-three".