13121412 has 24 divisors (see below), whose sum is σ = 30676800. Its totient is φ = 4365216.

The previous prime is 13121411. The next prime is 13121417. The reversal of 13121412 is 21412131.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13121391 and 13121400.

It is not an unprimeable number, because it can be changed into a prime (13121411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9289 + ... + 10607.

It is an arithmetic number, because the mean of its divisors is an integer number (1278200).

Almost surely, 2^13121412 is an apocalyptic number.

13121412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13121412 is an abundant number, since it is smaller than the sum of its proper divisors (17555388).

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

13121412 is a wasteful number, since it uses less digits than its factorization.

13121412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155 (or 2153 counting only the distinct ones).

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

The square root of 13121412 is about 3622.3489616546. The cubic root of 13121412 is about 235.8632023445.

Adding to 13121412 its reverse (21412131), we get a palindrome (34533543).

The spelling of 13121412 in words is "thirteen million, one hundred twenty-one thousand, four hundred twelve".