3123111453512 has 16 divisors (see below), whose sum is σ = 5856003499500. Its totient is φ = 1561510520320.

The previous prime is 3123111453509. The next prime is 3123111453521. The reversal of 3123111453512 is 2153541113213.

It can be written as a sum of positive squares in 2 ways, for example, as 3001188971236 + 121922482276 = 1732394^2 + 349174^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5356289 + ... + 5910672.

Almost surely, 2^{3123111453512} is an apocalyptic number.

It is an amenable number.

3123111453512 is a deficient number, since it is larger than the sum of its proper divisors (2732892045988).

3123111453512 is a wasteful number, since it uses less digits than its factorization.

3123111453512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11301616 (or 11301612 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

Adding to 3123111453512 its reverse (2153541113213), we get a palindrome (5276652566725).

The spelling of 3123111453512 in words is "three trillion, one hundred twenty-three billion, one hundred eleven million, four hundred fifty-three thousand, five hundred twelve".