13212140320 has 48 divisors (see below), whose sum is σ = 31412554488. Its totient is φ = 5251184640.

The previous prime is 13212140317. The next prime is 13212140341. The reversal of 13212140320 is 2304121231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9316882576 + 3895257744 = 96524^2 + 62412^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237861 + ... + 288100.

Almost surely, 2^13212140320 is an apocalyptic number.

13212140320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212140320 is an abundant number, since it is smaller than the sum of its proper divisors (18200414168).

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

13212140320 is a wasteful number, since it uses less digits than its factorization.

13212140320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526133 (or 526125 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13212140320 its reverse (2304121231), we get a palindrome (15516261551).

The spelling of 13212140320 in words is "thirteen billion, two hundred twelve million, one hundred forty thousand, three hundred twenty".