12771503701 has 4 divisors (see below), whose sum is σ = 13932549504. Its totient is φ = 11610457900.

The previous prime is 12771503663. The next prime is 12771503711. The reversal of 12771503701 is 10730517721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12771503701 - 2¹¹ = 12771501653 is a prime.

It is a super-2 number, since 2×12771503701² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12771503711) 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, 580522885 + ... + 580522906.

It is an arithmetic number, because the mean of its divisors is an integer number (3483137376).

Almost surely, 2^12771503701 is an apocalyptic number.

12771503701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12771503701 is a deficient number, since it is larger than the sum of its proper divisors (1161045803).

12771503701 is a wasteful number, since it uses less digits than its factorization.

12771503701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161045802.

The product of its (nonzero) digits is 10290, while the sum is 34.

The spelling of 12771503701 in words is "twelve billion, seven hundred seventy-one million, five hundred three thousand, seven hundred one".