12711018401 has 4 divisors (see below), whose sum is σ = 12781245204. Its totient is φ = 12640791600.

The previous prime is 12711018377. The next prime is 12711018413. The reversal of 12711018401 is 10481011721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10481011721 = 2473 ⋅4238177.

It can be written as a sum of positive squares in 2 ways, for example, as 540516001 + 12170502400 = 23249^2 + 110320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12711018401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12711018301) 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, 35113130 + ... + 35113491.

It is an arithmetic number, because the mean of its divisors is an integer number (3195311301).

Almost surely, 2^12711018401 is an apocalyptic number.

It is an amenable number.

12711018401 is a deficient number, since it is larger than the sum of its proper divisors (70226803).

12711018401 is an equidigital number, since it uses as much as digits as its factorization.

12711018401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70226802.

The product of its (nonzero) digits is 448, while the sum is 26.

The spelling of 12711018401 in words is "twelve billion, seven hundred eleven million, eighteen thousand, four hundred one".