13102420 has 12 divisors (see below), whose sum is σ = 27515124. Its totient is φ = 5240960.

The previous prime is 13102417. The next prime is 13102459. The reversal of 13102420 is 2420131.

It can be written as a sum of positive squares in 2 ways, for example, as 3392964 + 9709456 = 1842^2 + 3116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13102420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327541 + ... + 327580.

It is an arithmetic number, because the mean of its divisors is an integer number (2292927).

Almost surely, 2^13102420 is an apocalyptic number.

13102420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13102420 is an abundant number, since it is smaller than the sum of its proper divisors (14412704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13102420 is a wasteful number, since it uses less digits than its factorization.

13102420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655130 (or 655128 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 13102420 is about 3619.7265090059. The cubic root of 13102420 is about 235.7493508549.

Adding to 13102420 its reverse (2420131), we get a palindrome (15522551).

It can be divided in two parts, 131024 and 20, that added together give a square (131044 = 362²).

The spelling of 13102420 in words is "thirteen million, one hundred two thousand, four hundred twenty".