13402120011 has 16 divisors (see below), whose sum is σ = 20424966144. Its totient is φ = 7657346304.

The previous prime is 13402120009. The next prime is 13402120013. The reversal of 13402120011 is 11002120431.

It is an interprime number because it is at equal distance from previous prime (13402120009) and next prime (13402120013).

It is not a de Polignac number, because 13402120011 - 2¹ = 13402120009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13402120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139611 + ... + 215163.

It is an arithmetic number, because the mean of its divisors is an integer number (1276560384).

Almost surely, 2^13402120011 is an apocalyptic number.

13402120011 is a deficient number, since it is larger than the sum of its proper divisors (7022846133).

13402120011 is an equidigital number, since it uses as much as digits as its factorization.

13402120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84010.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 13402120011 its reverse (11002120431), we get a palindrome (24404240442).

The spelling of 13402120011 in words is "thirteen billion, four hundred two million, one hundred twenty thousand, eleven".