312123402351003 has 16 divisors (see below), whose sum is σ = 416194360803360. Its totient is φ = 208067356706304.

The previous prime is 312123402351001. The next prime is 312123402351011. The reversal of 312123402351003 is 300153204321213.

It is not a de Polignac number, because 312123402351003 - 2¹ = 312123402351001 is a prime.

It is a super-2 number, since 2×312123402351003² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312123402351001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3468416733 + ... + 3468506721.

It is an arithmetic number, because the mean of its divisors is an integer number (26012147550210).

Almost surely, 2^{312123402351003} is an apocalyptic number.

312123402351003 is a deficient number, since it is larger than the sum of its proper divisors (104070958452357).

312123402351003 is a wasteful number, since it uses less digits than its factorization.

312123402351003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159998.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 312123402351003 its reverse (300153204321213), we get a palindrome (612276606672216).

The spelling of 312123402351003 in words is "three hundred twelve trillion, one hundred twenty-three billion, four hundred two million, three hundred fifty-one thousand, three".