312210032123 has 4 divisors (see below), whose sum is σ = 340592762328. Its totient is φ = 283827301920.

The previous prime is 312210032023. The next prime is 312210032231. The reversal of 312210032123 is 321230012213.

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 312210032123 - 2²⁴ = 312193254907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312210032095 and 312210032104.

It is not an unprimeable number, because it can be changed into a prime (312210032023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14191365086 + ... + 14191365107.

It is an arithmetic number, because the mean of its divisors is an integer number (85148190582).

Almost surely, 2^312210032123 is an apocalyptic number.

312210032123 is a deficient number, since it is larger than the sum of its proper divisors (28382730205).

312210032123 is a wasteful number, since it uses less digits than its factorization.

312210032123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28382730204.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312210032123 its reverse (321230012213), we get a palindrome (633440044336).

The spelling of 312210032123 in words is "three hundred twelve billion, two hundred ten million, thirty-two thousand, one hundred twenty-three".