13248599881 has 12 divisors (see below), whose sum is σ = 14565656196. Its totient is φ = 12041580320.

The previous prime is 13248599873. The next prime is 13248599891. The reversal of 13248599881 is 18899584231.

It can be written as a sum of positive squares in 2 ways, for example, as 3327443856 + 9921156025 = 57684^2 + 99605^2 .

It is not a de Polignac number, because 13248599881 - 2³ = 13248599873 is a prime.

It is a super-3 number, since 3×13248599881³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13248599831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 755691 + ... + 773023.

It is an arithmetic number, because the mean of its divisors is an integer number (1213804683).

Almost surely, 2^13248599881 is an apocalyptic number.

13248599881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13248599881 is a deficient number, since it is larger than the sum of its proper divisors (1317056315).

13248599881 is a wasteful number, since it uses less digits than its factorization.

13248599881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23672 (or 23661 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 58.

The spelling of 13248599881 in words is "thirteen billion, two hundred forty-eight million, five hundred ninety-nine thousand, eight hundred eighty-one".