13121230 has 16 divisors (see below), whose sum is σ = 24195024. Its totient is φ = 5120320.

The previous prime is 13121219. The next prime is 13121231. The reversal of 13121230 is 3212131.

13121230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13121230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121231) 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, 15592 + ... + 16411.

It is an arithmetic number, because the mean of its divisors is an integer number (1512189).

Almost surely, 2^13121230 is an apocalyptic number.

13121230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121230 is a deficient number, since it is larger than the sum of its proper divisors (11073794).

13121230 is a wasteful number, since it uses less digits than its factorization.

13121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32051.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13121230 is about 3622.3238397471. The cubic root of 13121230 is about 235.8621118292.

Adding to 13121230 its reverse (3212131), we get a palindrome (16333361).

Subtracting from 13121230 its reverse (3212131), we obtain a palindrome (9909099).

The spelling of 13121230 in words is "thirteen million, one hundred twenty-one thousand, two hundred thirty".