13120140344401 has 4 divisors (see below), whose sum is σ = 13335224612404. Its totient is φ = 12905056076400.

The previous prime is 13120140344383. The next prime is 13120140344417. The reversal of 13120140344401 is 10444304102131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2776808973376 + 10343331371025 = 1666376^2 + 3216105^2 .

It is a cyclic number.

It is not a de Polignac number, because 13120140344401 - 2¹⁹ = 13120139820113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13120140344401.

It is not an unprimeable number, because it can be changed into a prime (13120140344491) 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, 107542133910 + ... + 107542134031.

It is an arithmetic number, because the mean of its divisors is an integer number (3333806153101).

Almost surely, 2^{13120140344401} is an apocalyptic number.

It is an amenable number.

13120140344401 is a deficient number, since it is larger than the sum of its proper divisors (215084268003).

13120140344401 is an equidigital number, since it uses as much as digits as its factorization.

13120140344401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215084268002.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 13120140344401 its reverse (10444304102131), we get a palindrome (23564444446532).

The spelling of 13120140344401 in words is "thirteen trillion, one hundred twenty billion, one hundred forty million, three hundred forty-four thousand, four hundred one".