12511234454401 has 16 divisors (see below), whose sum is σ = 12877412041728. Its totient is φ = 12151476691200.

The previous prime is 12511234454387. The next prime is 12511234454449. The reversal of 12511234454401 is 10445443211521.

It is a cyclic number.

It is not a de Polignac number, because 12511234454401 - 2¹³ = 12511234446209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12511234404401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2879910 + ... + 5772031.

It is an arithmetic number, because the mean of its divisors is an integer number (804838252608).

Almost surely, 2^{12511234454401} is an apocalyptic number.

It is an amenable number.

12511234454401 is a deficient number, since it is larger than the sum of its proper divisors (366177587327).

12511234454401 is a wasteful number, since it uses less digits than its factorization.

12511234454401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8652312.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 12511234454401 its reverse (10445443211521), we get a palindrome (22956677665922).

The spelling of 12511234454401 in words is "twelve trillion, five hundred eleven billion, two hundred thirty-four million, four hundred fifty-four thousand, four hundred one".