312203011123 has 2 divisors, whose sum is σ = 312203011124. Its totient is φ = 312203011122.

The previous prime is 312203011111. The next prime is 312203011129. The reversal of 312203011123 is 321110302213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312203011123 - 2⁹ = 312203010611 is a prime.

It is a super-3 number, since 3×312203011123³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 312203011123.

It is not a weakly prime, because it can be changed into another prime (312203011129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156101505561 + 156101505562.

It is an arithmetic number, because the mean of its divisors is an integer number (156101505562).

Almost surely, 2^312203011123 is an apocalyptic number.

312203011123 is a deficient number, since it is larger than the sum of its proper divisors (1).

312203011123 is an equidigital number, since it uses as much as digits as its factorization.

312203011123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312203011123 its reverse (321110302213), we get a palindrome (633313313336).

The spelling of 312203011123 in words is "three hundred twelve billion, two hundred three million, eleven thousand, one hundred twenty-three".