11232131213 has 8 divisors (see below), whose sum is σ = 11732264448. Its totient is φ = 10732979664.

The previous prime is 11232131147. The next prime is 11232131227. The reversal of 11232131213 is 31213123211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11232131213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232131243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221981 + ... + 267842.

It is an arithmetic number, because the mean of its divisors is an integer number (1466533056).

Almost surely, 2^11232131213 is an apocalyptic number.

It is an amenable number.

11232131213 is a deficient number, since it is larger than the sum of its proper divisors (500133235).

11232131213 is an equidigital number, since it uses as much as digits as its factorization.

11232131213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490843.

The product of its digits is 216, while the sum is 20.

Adding to 11232131213 its reverse (31213123211), we get a palindrome (42445254424).

The spelling of 11232131213 in words is "eleven billion, two hundred thirty-two million, one hundred thirty-one thousand, two hundred thirteen".