12051537071 has 4 divisors (see below), whose sum is σ = 13773185232. Its totient is φ = 10329888912.

The previous prime is 12051537067. The next prime is 12051537083. The reversal of 12051537071 is 17073515021.

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

It is not a de Polignac number, because 12051537071 - 2² = 12051537067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051597071) 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, 860824070 + ... + 860824083.

It is an arithmetic number, because the mean of its divisors is an integer number (3443296308).

Almost surely, 2^12051537071 is an apocalyptic number.

12051537071 is a deficient number, since it is larger than the sum of its proper divisors (1721648161).

12051537071 is an equidigital number, since it uses as much as digits as its factorization.

12051537071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721648160.

The product of its (nonzero) digits is 7350, while the sum is 32.

The spelling of 12051537071 in words is "twelve billion, fifty-one million, five hundred thirty-seven thousand, seventy-one".