312320123135 has 16 divisors (see below), whose sum is σ = 378241138080. Its totient is φ = 247553080320.

The previous prime is 312320123119. The next prime is 312320123149. The reversal of 312320123135 is 531321023213.

It is not a de Polignac number, because 312320123135 - 2⁴ = 312320123119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1441811 + ... + 1644219.

It is an arithmetic number, because the mean of its divisors is an integer number (23640071130).

Almost surely, 2^312320123135 is an apocalyptic number.

312320123135 is a deficient number, since it is larger than the sum of its proper divisors (65921014945).

312320123135 is a wasteful number, since it uses less digits than its factorization.

312320123135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205258.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 312320123135 its reverse (531321023213), we get a palindrome (843641146348).

The spelling of 312320123135 in words is "three hundred twelve billion, three hundred twenty million, one hundred twenty-three thousand, one hundred thirty-five".