13420511 has 4 divisors (see below), whose sum is σ = 14452872. Its totient is φ = 12388152.

The previous prime is 13420499. The next prime is 13420541. The reversal of 13420511 is 11502431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11502431 = 53 ⋅217027.

It is a cyclic number.

It is not a de Polignac number, because 13420511 - 2²² = 9226207 is a prime.

It is a super-2 number, since 2×13420511² = 360220231002242, which contains 22 as substring.

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 13420511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420541) 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, 516161 + ... + 516186.

It is an arithmetic number, because the mean of its divisors is an integer number (3613218).

Almost surely, 2^13420511 is an apocalyptic number.

13420511 is a deficient number, since it is larger than the sum of its proper divisors (1032361).

13420511 is a wasteful number, since it uses less digits than its factorization.

13420511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032360.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 13420511 is about 3663.4015613907. The cubic root of 13420511 is about 237.6419007962.

Adding to 13420511 its reverse (11502431), we get a palindrome (24922942).

It can be divided in two parts, 13420 and 511, that added together give a palindrome (13931).

The spelling of 13420511 in words is "thirteen million, four hundred twenty thousand, five hundred eleven".