312542023 has 2 divisors, whose sum is σ = 312542024. Its totient is φ = 312542022.

The previous prime is 312542011. The next prime is 312542033. The reversal of 312542023 is 320245213.

It is a strong prime.

It is an emirp because it is prime and its reverse (320245213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312542023 - 2⁹ = 312541511 is a prime.

It is a super-2 number, since 2×312542023² = 195365032281865058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312541985 and 312542003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312542033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156271011 + 156271012.

It is an arithmetic number, because the mean of its divisors is an integer number (156271012).

Almost surely, 2^312542023 is an apocalyptic number.

312542023 is a deficient number, since it is larger than the sum of its proper divisors (1).

312542023 is an equidigital number, since it uses as much as digits as its factorization.

312542023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 312542023 is about 17678.8580796385. The cubic root of 312542023 is about 678.6348209111.

Adding to 312542023 its reverse (320245213), we get a palindrome (632787236).

The spelling of 312542023 in words is "three hundred twelve million, five hundred forty-two thousand, twenty-three".