131011021350213 has 4 divisors (see below), whose sum is σ = 174681361800288. Its totient is φ = 87340680900140.

The previous prime is 131011021350197. The next prime is 131011021350241. The reversal of 131011021350213 is 312053120110131.

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 131011021350213 - 2⁴ = 131011021350197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011021350263) 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, 21835170225033 + ... + 21835170225038.

It is an arithmetic number, because the mean of its divisors is an integer number (43670340450072).

Almost surely, 2^{131011021350213} is an apocalyptic number.

It is an amenable number.

131011021350213 is a deficient number, since it is larger than the sum of its proper divisors (43670340450075).

131011021350213 is an equidigital number, since it uses as much as digits as its factorization.

131011021350213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43670340450074.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 131011021350213 its reverse (312053120110131), we get a palindrome (443064141460344).

The spelling of 131011021350213 in words is "one hundred thirty-one trillion, eleven billion, twenty-one million, three hundred fifty thousand, two hundred thirteen".