13402051311 has 32 divisors (see below), whose sum is σ = 20081846016. Its totient is φ = 7878816000.

The previous prime is 13402051253. The next prime is 13402051331. The reversal of 13402051311 is 11315020431.

It is not a de Polignac number, because 13402051311 - 2⁷ = 13402051183 is a prime.

It is a super-2 number, since 2×13402051311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402051331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387571 + ... + 420731.

It is an arithmetic number, because the mean of its divisors is an integer number (627557688).

Almost surely, 2^13402051311 is an apocalyptic number.

13402051311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13402051311 is a deficient number, since it is larger than the sum of its proper divisors (6679794705).

13402051311 is a wasteful number, since it uses less digits than its factorization.

13402051311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33543.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 13402051311 its reverse (11315020431), we get a palindrome (24717071742).

The spelling of 13402051311 in words is "thirteen billion, four hundred two million, fifty-one thousand, three hundred eleven".