312311123102 has 24 divisors (see below), whose sum is σ = 516185342400. Its totient is φ = 141612467040.

The previous prime is 312311123057. The next prime is 312311123107. The reversal of 312311123102 is 201321113213.

It is a happy number.

It is a super-2 number, since 2×312311123102² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312311123107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1478702 + ... + 1676657.

It is an arithmetic number, because the mean of its divisors is an integer number (21507722600).

Almost surely, 2^312311123102 is an apocalyptic number.

312311123102 is a deficient number, since it is larger than the sum of its proper divisors (203874219298).

312311123102 is a wasteful number, since it uses less digits than its factorization.

312311123102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155792 (or 3155781 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 312311123102 its reverse (201321113213), we get a palindrome (513632236315).

The spelling of 312311123102 in words is "three hundred twelve billion, three hundred eleven million, one hundred twenty-three thousand, one hundred two".