12071057783 has 4 divisors (see below), whose sum is σ = 12138494040. Its totient is φ = 12003621528.

The previous prime is 12071057767. The next prime is 12071057797. The reversal of 12071057783 is 38775017021.

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

It is a cyclic number.

It is not a de Polignac number, because 12071057783 - 2⁴ = 12071057767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12071057783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071057753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33717860 + ... + 33718217.

It is an arithmetic number, because the mean of its divisors is an integer number (3034623510).

Almost surely, 2^12071057783 is an apocalyptic number.

12071057783 is a deficient number, since it is larger than the sum of its proper divisors (67436257).

12071057783 is an equidigital number, since it uses as much as digits as its factorization.

12071057783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67436256.

The product of its (nonzero) digits is 82320, while the sum is 41.

The spelling of 12071057783 in words is "twelve billion, seventy-one million, fifty-seven thousand, seven hundred eighty-three".