131312201213 has 4 divisors (see below), whose sum is σ = 131776202208. Its totient is φ = 130848200220.

The previous prime is 131312201183. The next prime is 131312201219. The reversal of 131312201213 is 312102213131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131312201213 - 2¹² = 131312197117 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 (131312201219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232000073 + ... + 232000638.

It is an arithmetic number, because the mean of its divisors is an integer number (32944050552).

Almost surely, 2^131312201213 is an apocalyptic number.

It is an amenable number.

131312201213 is a deficient number, since it is larger than the sum of its proper divisors (464000995).

131312201213 is an equidigital number, since it uses as much as digits as its factorization.

131312201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464000994.

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

Adding to 131312201213 its reverse (312102213131), we get a palindrome (443414414344).

The spelling of 131312201213 in words is "one hundred thirty-one billion, three hundred twelve million, two hundred one thousand, two hundred thirteen".