12511350401 has 4 divisors (see below), whose sum is σ = 13648745904. Its totient is φ = 11373954900.

The previous prime is 12511350377. The next prime is 12511350403. The reversal of 12511350401 is 10405311521.

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 not a de Polignac number, because 12511350401 - 2³⁰ = 11437608577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12511350403) 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, 568697735 + ... + 568697756.

It is an arithmetic number, because the mean of its divisors is an integer number (3412186476).

Almost surely, 2^12511350401 is an apocalyptic number.

12511350401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12511350401 is a deficient number, since it is larger than the sum of its proper divisors (1137395503).

12511350401 is a wasteful number, since it uses less digits than its factorization.

12511350401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137395502.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 12511350401 its reverse (10405311521), we get a palindrome (22916661922).

The spelling of 12511350401 in words is "twelve billion, five hundred eleven million, three hundred fifty thousand, four hundred one".