312232123 has 4 divisors (see below), whose sum is σ = 356836720. Its totient is φ = 267627528.

The previous prime is 312232079. The next prime is 312232147. The reversal of 312232123 is 321232213.

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

It is not a de Polignac number, because 312232123 - 2¹³ = 312223931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312232123.

It is not an unprimeable number, because it can be changed into a prime (312232423) 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, 22302288 + ... + 22302301.

It is an arithmetic number, because the mean of its divisors is an integer number (89209180).

Almost surely, 2^312232123 is an apocalyptic number.

312232123 is a deficient number, since it is larger than the sum of its proper divisors (44604597).

312232123 is an equidigital number, since it uses as much as digits as its factorization.

312232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44604596.

The product of its digits is 432, while the sum is 19.

The square root of 312232123 is about 17670.0911995383. The cubic root of 312232123 is about 678.4104473717.

Adding to 312232123 its reverse (321232213), we get a palindrome (633464336).

It can be divided in two parts, 3122 and 32123, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 312232123 in words is "three hundred twelve million, two hundred thirty-two thousand, one hundred twenty-three".