12311243351145 has 48 divisors (see below), whose sum is σ = 22155188170752. Its totient is φ = 6317460570240.

The previous prime is 12311243351107. The next prime is 12311243351161. The reversal of 12311243351145 is 54115334211321.

12311243351145 is a `hidden beast` number, since 1 + 2 + 31 + 1 + 2 + 433 + 51 + 145 = 666.

12311243351145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12311243351145 - 2⁹ = 12311243350633 is a prime.

It is a super-2 number, since 2×12311243351145² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25265209 + ... + 25747878.

It is an arithmetic number, because the mean of its divisors is an integer number (461566420224).

Almost surely, 2^{12311243351145} is an apocalyptic number.

12311243351145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12311243351145 is a deficient number, since it is larger than the sum of its proper divisors (9843944819607).

12311243351145 is a wasteful number, since it uses less digits than its factorization.

12311243351145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51013302 (or 51013299 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 12311243351145 its reverse (54115334211321), we get a palindrome (66426577562466).

The spelling of 12311243351145 in words is "twelve trillion, three hundred eleven billion, two hundred forty-three million, three hundred fifty-one thousand, one hundred forty-five".