12085313542 has 4 divisors (see below), whose sum is σ = 18127970316. Its totient is φ = 6042656770.

The previous prime is 12085313533. The next prime is 12085313543. The reversal of 12085313542 is 24531358021.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12085313498 and 12085313507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12085313543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3021328384 + ... + 3021328387.

It is an arithmetic number, because the mean of its divisors is an integer number (4531992579).

Almost surely, 2^12085313542 is an apocalyptic number.

12085313542 is a deficient number, since it is larger than the sum of its proper divisors (6042656774).

12085313542 is an equidigital number, since it uses as much as digits as its factorization.

12085313542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042656773.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 12085313542 in words is "twelve billion, eighty-five million, three hundred thirteen thousand, five hundred forty-two".