13111739513 has 6 divisors (see below), whose sum is σ = 13706601594. Its totient is φ = 12541663376.

The previous prime is 13111739471. The next prime is 13111739539. The reversal of 13111739513 is 31593711131.

It can be written as a sum of positive squares in only one way, i.e., 8996901904 + 4114837609 = 94852^2 + 64147^2 .

It is not a de Polignac number, because 13111739513 - 2¹⁶ = 13111673977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111739213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12392420 + ... + 12393477.

It is an arithmetic number, because the mean of its divisors is an integer number (2284433599).

Almost surely, 2^13111739513 is an apocalyptic number.

It is an amenable number.

13111739513 is a deficient number, since it is larger than the sum of its proper divisors (594862081).

13111739513 is an equidigital number, since it uses as much as digits as its factorization.

13111739513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24785943 (or 24785920 counting only the distinct ones).

The product of its digits is 8505, while the sum is 35.

The spelling of 13111739513 in words is "thirteen billion, one hundred eleven million, seven hundred thirty-nine thousand, five hundred thirteen".