13213212131 has 8 divisors (see below), whose sum is σ = 15422108160. Its totient is φ = 11084639688.

The previous prime is 13213212121. The next prime is 13213212137. The reversal of 13213212131 is 13121231231.

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 not a de Polignac number, because 13213212131 - 2¹⁰ = 13213211107 is a prime.

It is a super-2 number, since 2×13213212131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213212137) 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, 20080541 + ... + 20081198.

It is an arithmetic number, because the mean of its divisors is an integer number (1927763520).

Almost surely, 2^13213212131 is an apocalyptic number.

13213212131 is a deficient number, since it is larger than the sum of its proper divisors (2208896029).

13213212131 is an equidigital number, since it uses as much as digits as its factorization.

13213212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40161793.

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

Adding to 13213212131 its reverse (13121231231), we get a palindrome (26334443362).

The spelling of 13213212131 in words is "thirteen billion, two hundred thirteen million, two hundred twelve thousand, one hundred thirty-one".