12311434063650 has 24 divisors (see below), whose sum is σ = 30532356478224. Its totient is φ = 3283049083600.

The previous prime is 12311434063613. The next prime is 12311434063657. The reversal of 12311434063650 is 5636043411321.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12311434063599 and 12311434063608.

It is not an unprimeable number, because it can be changed into a prime (12311434063657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41038113396 + ... + 41038113695.

It is an arithmetic number, because the mean of its divisors is an integer number (1272181519926).

Almost surely, 2^{12311434063650} is an apocalyptic number.

12311434063650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311434063650 is an abundant number, since it is smaller than the sum of its proper divisors (18220922414574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311434063650 is a wasteful number, since it uses less digits than its factorization.

12311434063650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82076227106 (or 82076227101 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

Adding to 12311434063650 its reverse (5636043411321), we get a palindrome (17947477474971).

The spelling of 12311434063650 in words is "twelve trillion, three hundred eleven billion, four hundred thirty-four million, sixty-three thousand, six hundred fifty".