131445201044513 has 4 divisors (see below), whose sum is σ = 138363369520560. Its totient is φ = 124527032568468.

The previous prime is 131445201044497. The next prime is 131445201044533. The reversal of 131445201044513 is 315440102544131.

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 131445201044513 - 2⁴ = 131445201044497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131445201044533) 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, 3459084237995 + ... + 3459084238032.

It is an arithmetic number, because the mean of its divisors is an integer number (34590842380140).

Almost surely, 2^{131445201044513} is an apocalyptic number.

It is an amenable number.

131445201044513 is a deficient number, since it is larger than the sum of its proper divisors (6918168476047).

131445201044513 is an equidigital number, since it uses as much as digits as its factorization.

131445201044513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918168476046.

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 131445201044513 its reverse (315440102544131), we get a palindrome (446885303588644).

The spelling of 131445201044513 in words is "one hundred thirty-one trillion, four hundred forty-five billion, two hundred one million, forty-four thousand, five hundred thirteen".