13212133240 has 32 divisors (see below), whose sum is σ = 29730600000. Its totient is φ = 5284266624.

The previous prime is 13212133237. The next prime is 13212133243. The reversal of 13212133240 is 4233121231.

It is an interprime number because it is at equal distance from previous prime (13212133237) and next prime (13212133243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212133243) 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, 626386 + ... + 647134.

It is an arithmetic number, because the mean of its divisors is an integer number (929081250).

Almost surely, 2^13212133240 is an apocalyptic number.

13212133240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212133240 is an abundant number, since it is smaller than the sum of its proper divisors (16518466760).

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

13212133240 is a wasteful number, since it uses less digits than its factorization.

13212133240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36679 (or 36675 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13212133240 its reverse (4233121231), we get a palindrome (17445254471).

The spelling of 13212133240 in words is "thirteen billion, two hundred twelve million, one hundred thirty-three thousand, two hundred forty".