312011123103 has 6 divisors (see below), whose sum is σ = 450682733384. Its totient is φ = 208007415396.

The previous prime is 312011123093. The next prime is 312011123111. The reversal of 312011123103 is 301321110213.

It is not a de Polignac number, because 312011123103 - 2⁴ = 312011123087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312011113103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17333951275 + ... + 17333951292.

Almost surely, 2^312011123103 is an apocalyptic number.

312011123103 is a deficient number, since it is larger than the sum of its proper divisors (138671610281).

312011123103 is a wasteful number, since it uses less digits than its factorization.

312011123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34667902573 (or 34667902570 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 312011123103 its reverse (301321110213), we get a palindrome (613332233316).

The spelling of 312011123103 in words is "three hundred twelve billion, eleven million, one hundred twenty-three thousand, one hundred three".