12301131020643 has 16 divisors (see below), whose sum is σ = 18227170413600. Its totient is φ = 8199281341440.

The previous prime is 12301131020623. The next prime is 12301131020677. The reversal of 12301131020643 is 34602013110321.

It is a happy number.

12301131020643 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 1 + 1 + 3 + 10 + 2 + 0 + 643 = 666.

It is not a de Polignac number, because 12301131020643 - 2³² = 12296836053347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12301131020623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40754418 + ... + 41055143.

It is an arithmetic number, because the mean of its divisors is an integer number (1139198150850).

Almost surely, 2^{12301131020643} is an apocalyptic number.

12301131020643 is a deficient number, since it is larger than the sum of its proper divisors (5926039392957).

12301131020643 is an equidigital number, since it uses as much as digits as its factorization.

12301131020643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81815139 (or 81815133 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 12301131020643 its reverse (34602013110321), we get a palindrome (46903144130964).

The spelling of 12301131020643 in words is "twelve trillion, three hundred one billion, one hundred thirty-one million, twenty thousand, six hundred forty-three".